656063892 has 72 divisors (see below), whose sum is σ = 1843339680. Its totient is φ = 195049920.

The previous prime is 656063887. The next prime is 656063899. The reversal of 656063892 is 298360656.

It is a happy number.

656063892 is a `hidden beast` number, since 6 + 5 + 6 + 0 + 638 + 9 + 2 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656063899) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5359 + ... + 36617.

It is an arithmetic number, because the mean of its divisors is an integer number (25601940).

Almost surely, 2^656063892 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 656063892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (921669840).

656063892 is an abundant number, since it is smaller than the sum of its proper divisors (1187275788).

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

656063892 is a wasteful number, since it uses less digits than its factorization.

656063892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31333 (or 31328 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 45.

The square root of 656063892 is about 25613.7442011120. The cubic root of 656063892 is about 868.9245053448.

The spelling of 656063892 in words is "six hundred fifty-six million, sixty-three thousand, eight hundred ninety-two".