655659072 has 84 divisors (see below), whose sum is σ = 1882932480. Its totient is φ = 218134272.

The previous prime is 655659047. The next prime is 655659107. The reversal of 655659072 is 270956556.

655659072 is a `hidden beast` number, since 6 + 5 + 56 + 590 + 7 + 2 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 496429 + ... + 497747.

Almost surely, 2^655659072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 655659072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (941466240).

655659072 is an abundant number, since it is smaller than the sum of its proper divisors (1227273408).

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

655659072 is a wasteful number, since it uses less digits than its factorization.

655659072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2200 (or 2187 counting only the distinct ones).

The product of its (nonzero) digits is 567000, while the sum is 45.

The square root of 655659072 is about 25605.8405837418. The cubic root of 655659072 is about 868.7457471489.

The spelling of 655659072 in words is "six hundred fifty-five million, six hundred fifty-nine thousand, seventy-two".