662684660 has 48 divisors (see below), whose sum is σ = 1598063040. Its totient is φ = 228291840.

The previous prime is 662684657. The next prime is 662684669. The reversal of 662684660 is 66486266.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (662684669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75089 + ... + 83448.

It is an arithmetic number, because the mean of its divisors is an integer number (33292980).

Almost surely, 2^662684660 is an apocalyptic number.

It is an amenable number.

662684660 is an abundant number, since it is smaller than the sum of its proper divisors (935378380).

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

662684660 is a wasteful number, since it uses less digits than its factorization.

662684660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158576 (or 158574 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 44.

The square root of 662684660 is about 25742.6622554855. The cubic root of 662684660 is about 871.8376886265.

The spelling of 662684660 in words is "six hundred sixty-two million, six hundred eighty-four thousand, six hundred sixty".