68295664 has 20 divisors (see below), whose sum is σ = 140107104. Its totient is φ = 32139008.

The previous prime is 68295631. The next prime is 68295683. The reversal of 68295664 is 46659286.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 125272 + ... + 125815.

Almost surely, 2^68295664 is an apocalyptic number.

It is an amenable number.

68295664 is an abundant number, since it is smaller than the sum of its proper divisors (71811440).

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

68295664 is a wasteful number, since it uses less digits than its factorization.

68295664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251112 (or 251106 counting only the distinct ones).

The product of its digits is 622080, while the sum is 46.

The square root of 68295664 is about 8264.1190698102. The cubic root of 68295664 is about 408.7562227572.

The spelling of 68295664 in words is "sixty-eight million, two hundred ninety-five thousand, six hundred sixty-four".