100560661155 has 12 divisors (see below), whose sum is σ = 174305146080. Its totient is φ = 53632352592.

The previous prime is 100560661151. The next prime is 100560661171. The reversal of 100560661155 is 551166065001.

It is not a de Polignac number, because 100560661155 - 2² = 100560661151 is a prime.

It is a super-2 number, since 2×100560661155² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (100560661151) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1117340635 + ... + 1117340724.

It is an arithmetic number, because the mean of its divisors is an integer number (14525428840).

Almost surely, 2^100560661155 is an apocalyptic number.

100560661155 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

100560661155 is a deficient number, since it is larger than the sum of its proper divisors (73744484925).

100560661155 is a wasteful number, since it uses less digits than its factorization.

100560661155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2234681370 (or 2234681367 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 36.

The spelling of 100560661155 in words is "one hundred billion, five hundred sixty million, six hundred sixty-one thousand, one hundred fifty-five".