654662656 has 44 divisors (see below), whose sum is σ = 1385704368. Its totient is φ = 308068352.

The previous prime is 654662653. The next prime is 654662669. The reversal of 654662656 is 656266456.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (654662653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1396 + ... + 36211.

Almost surely, 2^654662656 is an apocalyptic number.

It is an amenable number.

654662656 is an abundant number, since it is smaller than the sum of its proper divisors (731041712).

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

654662656 is a wasteful number, since it uses less digits than its factorization.

654662656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37644 (or 37626 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 46.

The square root of 654662656 is about 25586.3763749383. The cubic root of 654662656 is about 868.3054415718.

The spelling of 654662656 in words is "six hundred fifty-four million, six hundred sixty-two thousand, six hundred fifty-six".