68500664 has 16 divisors (see below), whose sum is σ = 129303000. Its totient is φ = 34019872.

The previous prime is 68500657. The next prime is 68500703. The reversal of 68500664 is 46600586.

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, 27542 + ... + 29925.

Almost surely, 2^68500664 is an apocalyptic number.

It is an amenable number.

68500664 is a deficient number, since it is larger than the sum of its proper divisors (60802336).

68500664 is a wasteful number, since it uses less digits than its factorization.

68500664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57622 (or 57618 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 68500664 is about 8276.5127922332. The cubic root of 68500664 is about 409.1647959084.

The spelling of 68500664 in words is "sixty-eight million, five hundred thousand, six hundred sixty-four".