10397945664 has 42 divisors (see below), whose sum is σ = 29803835490. Its totient is φ = 3465981696.

The previous prime is 10397945633. The next prime is 10397945707. The reversal of 10397945664 is 46654979301.

10397945664 is a `hidden beast` number, since 1 + 0 + 3 + 9 + 79 + 4 + 566 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 7238606400 + 3159339264 = 85080^2 + 56208^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 10397945664.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9025419 + ... + 9026570.

Almost surely, 2^10397945664 is an apocalyptic number.

It is an amenable number.

10397945664 is an abundant number, since it is smaller than the sum of its proper divisors (19405889826).

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

10397945664 is a wasteful number, since it uses less digits than its factorization.

10397945664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18052007 (or 18051994 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 54.

The spelling of 10397945664 in words is "ten billion, three hundred ninety-seven million, nine hundred forty-five thousand, six hundred sixty-four".