10520365664 has 24 divisors (see below), whose sum is σ = 21802074840. Its totient is φ = 4983330816.

The previous prime is 10520365651. The next prime is 10520365673. The reversal of 10520365664 is 46656302501.

It is a happy number.

It is a super-2 number, since 2×10520365664² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8651009 + ... + 8652224.

It is an arithmetic number, because the mean of its divisors is an integer number (908419785).

Almost surely, 2^10520365664 is an apocalyptic number.

It is an amenable number.

10520365664 is an abundant number, since it is smaller than the sum of its proper divisors (11281709176).

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

10520365664 is a wasteful number, since it uses less digits than its factorization.

10520365664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17303262 (or 17303254 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 10520365664 in words is "ten billion, five hundred twenty million, three hundred sixty-five thousand, six hundred sixty-four".