667560696 has 64 divisors (see below), whose sum is σ = 1879372800. Its totient is φ = 195763200.

The previous prime is 667560653. The next prime is 667560713. The reversal of 667560696 is 696065766.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32601 + ... + 48968.

It is an arithmetic number, because the mean of its divisors is an integer number (29365200).

Almost surely, 2^667560696 is an apocalyptic number.

667560696 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

667560696 is an abundant number, since it is smaller than the sum of its proper divisors (1211812104).

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

667560696 is a wasteful number, since it uses less digits than its factorization.

667560696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81620 (or 81616 counting only the distinct ones).

The product of its (nonzero) digits is 2449440, while the sum is 51.

The square root of 667560696 is about 25837.1959778920. The cubic root of 667560696 is about 873.9707935858.

The spelling of 667560696 in words is "six hundred sixty-seven million, five hundred sixty thousand, six hundred ninety-six".