65662316512 has 48 divisors (see below), whose sum is σ = 140151211200. Its totient is φ = 30102262272.

The previous prime is 65662316491. The next prime is 65662316527. The reversal of 65662316512 is 21561326656.

It is a super-2 number, since 2×65662316512² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467688 + ... + 591655.

It is an arithmetic number, because the mean of its divisors is an integer number (2919816900).

Almost surely, 2^65662316512 is an apocalyptic number.

It is an amenable number.

65662316512 is an abundant number, since it is smaller than the sum of its proper divisors (74488894688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65662316512 is a wasteful number, since it uses less digits than its factorization.

65662316512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059515 (or 1059507 counting only the distinct ones).

The product of its digits is 388800, while the sum is 43.

The spelling of 65662316512 in words is "sixty-five billion, six hundred sixty-two million, three hundred sixteen thousand, five hundred twelve".