68551564 has 12 divisors (see below), whose sum is σ = 120121344. Its totient is φ = 34231184.

The previous prime is 68551543. The next prime is 68551573. The reversal of 68551564 is 46515586.

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, 7564 + ... + 13939.

It is an arithmetic number, because the mean of its divisors is an integer number (10010112).

Almost surely, 2^68551564 is an apocalyptic number.

It is an amenable number.

68551564 is a deficient number, since it is larger than the sum of its proper divisors (51569780).

68551564 is a wasteful number, since it uses less digits than its factorization.

68551564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22304 (or 22302 counting only the distinct ones).

The product of its digits is 144000, while the sum is 40.

The square root of 68551564 is about 8279.5871877769. The cubic root of 68551564 is about 409.2661152757.

The spelling of 68551564 in words is "sixty-eight million, five hundred fifty-one thousand, five hundred sixty-four".