66377008 has 20 divisors (see below), whose sum is σ = 128984800. Its totient is φ = 33090624.

The previous prime is 66376997. The next prime is 66377039. The reversal of 66377008 is 80077366.

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, 360 + ... + 11527.

It is an arithmetic number, because the mean of its divisors is an integer number (6449240).

Almost surely, 2^66377008 is an apocalyptic number.

It is an amenable number.

66377008 is a deficient number, since it is larger than the sum of its proper divisors (62607792).

66377008 is a wasteful number, since it uses less digits than its factorization.

66377008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12244 (or 12238 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 37.

The square root of 66377008 is about 8147.2086017237. The cubic root of 66377008 is about 404.8920262895.

The spelling of 66377008 in words is "sixty-six million, three hundred seventy-seven thousand, eight".