662642660 has 48 divisors (see below), whose sum is σ = 1504790784. Its totient is φ = 244151808.

The previous prime is 662642653. The next prime is 662642683. The reversal of 662642660 is 66246266.

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, 4754 + ... + 36713.

It is an arithmetic number, because the mean of its divisors is an integer number (31349808).

Almost surely, 2^662642660 is an apocalyptic number.

It is an amenable number.

662642660 is an abundant number, since it is smaller than the sum of its proper divisors (842148124).

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

662642660 is a wasteful number, since it uses less digits than its factorization.

662642660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41540 (or 41538 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 38.

The square root of 662642660 is about 25741.8464761174. The cubic root of 662642660 is about 871.8192696314.

The spelling of 662642660 in words is "six hundred sixty-two million, six hundred forty-two thousand, six hundred sixty".