100664972 has 12 divisors (see below), whose sum is σ = 176343720. Its totient is φ = 50281056.

The previous prime is 100664959. The next prime is 100664981. The reversal of 100664972 is 279466001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8273 + ... + 16424.

It is an arithmetic number, because the mean of its divisors is an integer number (14695310).

Almost surely, 2^100664972 is an apocalyptic number.

It is an amenable number.

100664972 is a deficient number, since it is larger than the sum of its proper divisors (75678748).

100664972 is a wasteful number, since it uses less digits than its factorization.

100664972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25720 (or 25718 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 100664972 is about 10033.1935095462. The cubic root of 100664972 is about 465.1854534480.

The spelling of 100664972 in words is "one hundred million, six hundred sixty-four thousand, nine hundred seventy-two".