10561056551020 has 24 divisors (see below), whose sum is σ = 22406860191744. Its totient is φ = 4180871870976.

The previous prime is 10561056550991. The next prime is 10561056551063. The reversal of 10561056551020 is 2015565016501.

It is a super-2 number, since 2×10561056551020² (a number of 27 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, 2721919852 + ... + 2721923731.

It is an arithmetic number, because the mean of its divisors is an integer number (933619174656).

Almost surely, 2^{10561056551020} is an apocalyptic number.

10561056551020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10561056551020 is an abundant number, since it is smaller than the sum of its proper divisors (11845803640724).

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

10561056551020 is a wasteful number, since it uses less digits than its factorization.

10561056551020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5443843689 (or 5443843687 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 37.

The spelling of 10561056551020 in words is "ten trillion, five hundred sixty-one billion, fifty-six million, five hundred fifty-one thousand, twenty".