660250164 has 48 divisors (see below), whose sum is σ = 1766471168. Its totient is φ = 188021088.

The previous prime is 660250117. The next prime is 660250181. The reversal of 660250164 is 461052066.

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, 12987 + ... + 38589.

Almost surely, 2^660250164 is an apocalyptic number.

It is an amenable number.

660250164 is an abundant number, since it is smaller than the sum of its proper divisors (1106221004).

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

660250164 is a wasteful number, since it uses less digits than its factorization.

660250164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25924 (or 25922 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 30.

The square root of 660250164 is about 25695.3335063003. Note that the first 3 decimals coincide. The cubic root of 660250164 is about 870.7687589997.

The spelling of 660250164 in words is "six hundred sixty million, two hundred fifty thousand, one hundred sixty-four".