68080664 has 16 divisors (see below), whose sum is σ = 130765320. Its totient is φ = 33209920.

The previous prime is 68080657. The next prime is 68080669. The reversal of 68080664 is 46608086.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68080669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103454 + ... + 104109.

Almost surely, 2^68080664 is an apocalyptic number.

It is an amenable number.

68080664 is a deficient number, since it is larger than the sum of its proper divisors (62684656).

68080664 is a wasteful number, since it uses less digits than its factorization.

68080664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207610 (or 207606 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 68080664 is about 8251.1007750481. The cubic root of 68080664 is about 408.3268398616.

The spelling of 68080664 in words is "sixty-eight million, eighty thousand, six hundred sixty-four".