68063664 has 20 divisors (see below), whose sum is σ = 175831256. Its totient is φ = 22687872.

The previous prime is 68063659. The next prime is 68063687. The reversal of 68063664 is 46636086.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

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, 708949 + ... + 709044.

Almost surely, 2^68063664 is an apocalyptic number.

It is an amenable number.

68063664 is an abundant number, since it is smaller than the sum of its proper divisors (107767592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68063664 is a wasteful number, since it uses less digits than its factorization.

68063664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1418004 (or 1417998 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 39.

The square root of 68063664 is about 8250.0705451529. The cubic root of 68063664 is about 408.2928501121.

The spelling of 68063664 in words is "sixty-eight million, sixty-three thousand, six hundred sixty-four".