66624344 has 32 divisors (see below), whose sum is σ = 128671200. Its totient is φ = 32321280.

The previous prime is 66624323. The next prime is 66624361. The reversal of 66624344 is 44342666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74669 + ... + 75555.

It is an arithmetic number, because the mean of its divisors is an integer number (4020975).

Almost surely, 2^66624344 is an apocalyptic number.

It is an amenable number.

66624344 is a deficient number, since it is larger than the sum of its proper divisors (62046856).

66624344 is a wasteful number, since it uses less digits than its factorization.

66624344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163 (or 1159 counting only the distinct ones).

The product of its digits is 82944, while the sum is 35.

The square root of 66624344 is about 8162.3736743670. The cubic root of 66624344 is about 405.3943098718.

The spelling of 66624344 in words is "sixty-six million, six hundred twenty-four thousand, three hundred forty-four".