100561000550056 has 16 divisors (see below), whose sum is σ = 188592945992640. Its totient is φ = 50269548285360.

The previous prime is 100561000550051. The next prime is 100561000550099. The reversal of 100561000550056 is 650055000165001.

It is a super-2 number, since 2×100561000550056² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100561000550051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1368959686 + ... + 1369033141.

It is an arithmetic number, because the mean of its divisors is an integer number (11787059124540).

Almost surely, 2^{100561000550056} is an apocalyptic number.

It is an amenable number.

100561000550056 is a deficient number, since it is larger than the sum of its proper divisors (88031945442584).

100561000550056 is a wasteful number, since it uses less digits than its factorization.

100561000550056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2737997424 (or 2737997420 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 34.

The spelling of 100561000550056 in words is "one hundred trillion, five hundred sixty-one billion, five hundred fifty thousand, fifty-six".