66874672 has 10 divisors (see below), whose sum is σ = 129569708. Its totient is φ = 33437328.

The previous prime is 66874669. The next prime is 66874681. The reversal of 66874672 is 27647866.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2089818 + ... + 2089849.

Almost surely, 2^66874672 is an apocalyptic number.

It is an amenable number.

66874672 is a deficient number, since it is larger than the sum of its proper divisors (62695036).

66874672 is a wasteful number, since it uses less digits than its factorization.

66874672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4179675 (or 4179669 counting only the distinct ones).

The product of its digits is 677376, while the sum is 46.

The square root of 66874672 is about 8177.6935623683. The cubic root of 66874672 is about 405.9014053583.

The spelling of 66874672 in words is "sixty-six million, eight hundred seventy-four thousand, six hundred seventy-two".