The number "65" is an integer that follows 64 and precedes 66. It is an odd number and can be expressed as the sum of two prime numbers: 31 and 34. In Roman numerals, 65 is represented as LXV. In terms of significance, 65 is often associated with retirement age in many countries, where individuals may begin to receive benefits such as pensions. Additionally, 65 is the atomic number of terbium, a rare earth element used in various applications, including electronics and green phosphors.