660481018 has 32 divisors (see below), whose sum is σ = 1061424000. Its totient is φ = 307534656.

The previous prime is 660481007. The next prime is 660481033. The reversal of 660481018 is 810184066.

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, 337908 + ... + 339856.

It is an arithmetic number, because the mean of its divisors is an integer number (33169500).

Almost surely, 2^660481018 is an apocalyptic number.

660481018 is a deficient number, since it is larger than the sum of its proper divisors (400942982).

660481018 is a wasteful number, since it uses less digits than its factorization.

660481018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2166.

The product of its (nonzero) digits is 9216, while the sum is 34.

The square root of 660481018 is about 25699.8252523242. The cubic root of 660481018 is about 870.8702341869.

The spelling of 660481018 in words is "six hundred sixty million, four hundred eighty-one thousand, eighteen".