100561240992808 has 256 divisors, whose sum is σ = 219605026867200. Its totient is φ = 42893832683520.

The previous prime is 100561240992799. The next prime is 100561240992809. The reversal of 100561240992808 is 808299042165001.

It is a super-2 number, since 2×100561240992808² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100561240992809) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1524476835 + ... + 1524542797.

It is an arithmetic number, because the mean of its divisors is an integer number (857832136200).

Almost surely, 2^{100561240992808} is an apocalyptic number.

It is an amenable number.

100561240992808 is an abundant number, since it is smaller than the sum of its proper divisors (119043785874392).

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

100561240992808 is a wasteful number, since it uses less digits than its factorization.

100561240992808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66420 (or 66416 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 55.

The spelling of 100561240992808 in words is "one hundred trillion, five hundred sixty-one billion, two hundred forty million, nine hundred ninety-two thousand, eight hundred eight".