100666155108 has 24 divisors (see below), whose sum is σ = 235370024512. Its totient is φ = 33486480864.

The previous prime is 100666155097. The next prime is 100666155127. The reversal of 100666155108 is 801551666001.

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, 8606935 + ... + 8618622.

Almost surely, 2^100666155108 is an apocalyptic number.

It is an amenable number.

100666155108 is an abundant number, since it is smaller than the sum of its proper divisors (134703869404).

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

100666155108 is a wasteful number, since it uses less digits than its factorization.

100666155108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17226051 (or 17226049 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 39.

The spelling of 100666155108 in words is "one hundred billion, six hundred sixty-six million, one hundred fifty-five thousand, one hundred eight".