100605556051 has 32 divisors (see below), whose sum is σ = 135105739776. Its totient is φ = 72349200000.

The previous prime is 100605556043. The next prime is 100605556087. The reversal of 100605556051 is 150655506001.

It is not a de Polignac number, because 100605556051 - 2³ = 100605556043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 100605555998 and 100605556016.

It is not an unprimeable number, because it can be changed into a prime (100605556031) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9905826 + ... + 9915976.

It is an arithmetic number, because the mean of its divisors is an integer number (4222054368).

Almost surely, 2^100605556051 is an apocalyptic number.

100605556051 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

100605556051 is a deficient number, since it is larger than the sum of its proper divisors (34500183725).

100605556051 is a wasteful number, since it uses less digits than its factorization.

100605556051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20083.

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

It can be divided in two parts, 100605 and 556051, that added together give a palindrome (656656).

The spelling of 100605556051 in words is "one hundred billion, six hundred five million, five hundred fifty-six thousand, fifty-one".