66417304 has 16 divisors (see below), whose sum is σ = 124657920. Its totient is φ = 33175200.

The previous prime is 66417277. The next prime is 66417341. The reversal of 66417304 is 40371466.

It is a super-2 number, since 2×66417304² = 8822516541256832, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5602 + ... + 12814.

It is an arithmetic number, because the mean of its divisors is an integer number (7791120).

Almost surely, 2^66417304 is an apocalyptic number.

It is an amenable number.

66417304 is a deficient number, since it is larger than the sum of its proper divisors (58240616).

66417304 is a wasteful number, since it uses less digits than its factorization.

66417304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8370 (or 8366 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 31.

The square root of 66417304 is about 8149.6812207595. The cubic root of 66417304 is about 404.9739433523.

The spelling of 66417304 in words is "sixty-six million, four hundred seventeen thousand, three hundred four".