100561616104 has 32 divisors (see below), whose sum is σ = 193268665800. Its totient is φ = 49024788480.

The previous prime is 100561616093. The next prime is 100561616147. The reversal of 100561616104 is 401616165001.

It can be written as a sum of positive squares in 4 ways, for example, as 30310113604 + 70251502500 = 174098^2 + 265050^2 .

It is a super-2 number, since 2×100561616104² (a number of 23 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, 455584 + ... + 639280.

Almost surely, 2^100561616104 is an apocalyptic number.

It is an amenable number.

100561616104 is a deficient number, since it is larger than the sum of its proper divisors (92707049696).

100561616104 is a wasteful number, since it uses less digits than its factorization.

100561616104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185413 (or 185409 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

The spelling of 100561616104 in words is "one hundred billion, five hundred sixty-one million, six hundred sixteen thousand, one hundred four".