656543352 has 16 divisors (see below), whose sum is σ = 1641358440. Its totient is φ = 218847776.

The previous prime is 656543317. The next prime is 656543353. The reversal of 656543352 is 253345656.

It is a self number, because there is not a number n which added to its sum of digits gives 656543352.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (656543353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13677963 + ... + 13678010.

Almost surely, 2^656543352 is an apocalyptic number.

It is an amenable number.

656543352 is an abundant number, since it is smaller than the sum of its proper divisors (984815088).

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

656543352 is a wasteful number, since it uses less digits than its factorization.

656543352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27355982 (or 27355978 counting only the distinct ones).

The product of its digits is 324000, while the sum is 39.

The square root of 656543352 is about 25623.1019199472. The cubic root of 656543352 is about 869.1361275666.

It can be divided in two parts, 65654 and 3352, that added together give a triangular number (69006 = T₃₇₁).

The spelling of 656543352 in words is "six hundred fifty-six million, five hundred forty-three thousand, three hundred fifty-two".