662722572 has 12 divisors (see below), whose sum is σ = 1546352696. Its totient is φ = 220907520.

The previous prime is 662722549. The next prime is 662722589. The reversal of 662722572 is 275227266.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 662722572.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27613429 + ... + 27613452.

Almost surely, 2^662722572 is an apocalyptic number.

It is an amenable number.

662722572 is an abundant number, since it is smaller than the sum of its proper divisors (883630124).

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

662722572 is a wasteful number, since it uses less digits than its factorization.

662722572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55226888 (or 55226886 counting only the distinct ones).

The product of its digits is 141120, while the sum is 39.

The square root of 662722572 is about 25743.3986101292. The cubic root of 662722572 is about 871.8543141712.

The spelling of 662722572 in words is "six hundred sixty-two million, seven hundred twenty-two thousand, five hundred seventy-two".