100666611656 has 48 divisors (see below), whose sum is σ = 209139266160. Its totient is φ = 45380986560.

The previous prime is 100666611641. The next prime is 100666611763. The reversal of 100666611656 is 656116666001.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 807650 + ... + 923921.

It is an arithmetic number, because the mean of its divisors is an integer number (4357068045).

Almost surely, 2^100666611656 is an apocalyptic number.

It is an amenable number.

100666611656 is an abundant number, since it is smaller than the sum of its proper divisors (108472654504).

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

100666611656 is a wasteful number, since it uses less digits than its factorization.

100666611656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1731646 (or 1731629 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 44.

The spelling of 100666611656 in words is "one hundred billion, six hundred sixty-six million, six hundred eleven thousand, six hundred fifty-six".