656886552 has 96 divisors (see below), whose sum is σ = 1941862320. Its totient is φ = 184584960.

The previous prime is 656886539. The next prime is 656886553. The reversal of 656886552 is 255688656.

It is a junction number, because it is equal to n+sod(n) for n = 656886495 and 656886504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656886553) 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, 67158 + ... + 76314.

Almost surely, 2^656886552 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 656886552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (970931160).

656886552 is an abundant number, since it is smaller than the sum of its proper divisors (1284975768).

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

656886552 is a wasteful number, since it uses less digits than its factorization.

656886552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9241 (or 9230 counting only the distinct ones).

The product of its digits is 3456000, while the sum is 51.

The square root of 656886552 is about 25629.7981263997. The cubic root of 656886552 is about 869.2875446095.

The spelling of 656886552 in words is "six hundred fifty-six million, eight hundred eighty-six thousand, five hundred fifty-two".