65312635660 has 24 divisors (see below), whose sum is σ = 144375300720. Its totient is φ = 24750051264.

The previous prime is 65312635651. The next prime is 65312635669. The reversal of 65312635660 is 6653621356.

It is an interprime number because it is at equal distance from previous prime (65312635651) and next prime (65312635669).

It is not an unprimeable number, because it can be changed into a prime (65312635669) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85937299 + ... + 85938058.

It is an arithmetic number, because the mean of its divisors is an integer number (6015637530).

Almost surely, 2^65312635660 is an apocalyptic number.

It is an amenable number.

65312635660 is an abundant number, since it is smaller than the sum of its proper divisors (79062665060).

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

65312635660 is a wasteful number, since it uses less digits than its factorization.

65312635660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171875385 (or 171875383 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 43.

The spelling of 65312635660 in words is "sixty-five billion, three hundred twelve million, six hundred thirty-five thousand, six hundred sixty".