670662660 has 24 divisors (see below), whose sum is σ = 1877855616. Its totient is φ = 178843360.

The previous prime is 670662623. The next prime is 670662673. The reversal of 670662660 is 66266076.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5588796 + ... + 5588915.

It is an arithmetic number, because the mean of its divisors is an integer number (78243984).

Almost surely, 2^670662660 is an apocalyptic number.

670662660 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

670662660 is an abundant number, since it is smaller than the sum of its proper divisors (1207192956).

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

670662660 is a wasteful number, since it uses less digits than its factorization.

670662660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11177723 (or 11177721 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 670662660 is about 25897.1554422489. The cubic root of 670662660 is about 875.3223998344.

The spelling of 670662660 in words is "six hundred seventy million, six hundred sixty-two thousand, six hundred sixty".