10520561216 has 56 divisors (see below), whose sum is σ = 23259263616. Its totient is φ = 4680312320.

The previous prime is 10520561209. The next prime is 10520561251. The reversal of 10520561216 is 61216502501.

It is a happy number.

It is a super-2 number, since 2×10520561216² (a number of 21 digits) contains 22 as substring.

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, 125891 + ... + 192066.

Almost surely, 2^10520561216 is an apocalyptic number.

10520561216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

10520561216 is an abundant number, since it is smaller than the sum of its proper divisors (12738702400).

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

10520561216 is a wasteful number, since it uses less digits than its factorization.

10520561216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318027 (or 318017 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 29.

The spelling of 10520561216 in words is "ten billion, five hundred twenty million, five hundred sixty-one thousand, two hundred sixteen".