65037022713664 has 112 divisors (see below), whose sum is σ = 138361018395520. Its totient is φ = 30239739279360.

The previous prime is 65037022713659. The next prime is 65037022713709. The reversal of 65037022713664 is 46631722073056.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35223514 + ... + 37023910.

Almost surely, 2^{65037022713664} is an apocalyptic number.

65037022713664 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65037022713664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (69180509197760).

65037022713664 is an abundant number, since it is smaller than the sum of its proper divisors (73323995681856).

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

65037022713664 is a wasteful number, since it uses less digits than its factorization.

65037022713664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1800976 (or 1800966 counting only the distinct ones).

The product of its (nonzero) digits is 7620480, while the sum is 52.

The spelling of 65037022713664 in words is "sixty-five trillion, thirty-seven billion, twenty-two million, seven hundred thirteen thousand, six hundred sixty-four".