72632666 has 16 divisors (see below), whose sum is σ = 114355584. Its totient is φ = 34532784.

The previous prime is 72632629. The next prime is 72632701. The reversal of 72632666 is 66623627.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3395 + ... + 12521.

It is an arithmetic number, because the mean of its divisors is an integer number (7147224).

Almost surely, 2^72632666 is an apocalyptic number.

72632666 is a deficient number, since it is larger than the sum of its proper divisors (41722918).

72632666 is a wasteful number, since it uses less digits than its factorization.

72632666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9325.

The product of its digits is 108864, while the sum is 38.

The square root of 72632666 is about 8522.4800381110. The cubic root of 72632666 is about 417.2317298400.

The spelling of 72632666 in words is "seventy-two million, six hundred thirty-two thousand, six hundred sixty-six".