121172664 has 48 divisors (see below), whose sum is σ = 306293400. Its totient is φ = 39947008.

The previous prime is 121172659. The next prime is 121172677. The reversal of 121172664 is 466271121.

It is a congruent number.

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, 450322 + ... + 450590.

Almost surely, 2^121172664 is an apocalyptic number.

It is an amenable number.

121172664 is an abundant number, since it is smaller than the sum of its proper divisors (185120736).

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

121172664 is a wasteful number, since it uses less digits than its factorization.

121172664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552 (or 411 counting only the distinct ones).

The product of its digits is 4032, while the sum is 30.

The square root of 121172664 is about 11007.8455657772. The cubic root of 121172664 is about 494.8438973129.

The spelling of 121172664 in words is "one hundred twenty-one million, one hundred seventy-two thousand, six hundred sixty-four".