656411220234 has 192 divisors, whose sum is σ = 1801960722432. Its totient is φ = 167737651200.

The previous prime is 656411220217. The next prime is 656411220253. The reversal of 656411220234 is 432022114656.

656411220234 is a `hidden beast` number, since 6 + 5 + 6 + 411 + 2 + 2 + 0 + 234 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 47916874 + ... + 47930570.

It is an arithmetic number, because the mean of its divisors is an integer number (9385212096).

Almost surely, 2^656411220234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 656411220234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (900980361216).

656411220234 is an abundant number, since it is smaller than the sum of its proper divisors (1145549502198).

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

656411220234 is a wasteful number, since it uses less digits than its factorization.

656411220234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14281 (or 14278 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 656411220234 in words is "six hundred fifty-six billion, four hundred eleven million, two hundred twenty thousand, two hundred thirty-four".