656602056 has 96 divisors (see below), whose sum is σ = 1945663200. Its totient is φ = 198385920.

The previous prime is 656602043. The next prime is 656602069. The reversal of 656602056 is 650206656.

656602056 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (656602043) and next prime (656602069).

It is a super-3 number, since 3×656602056³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 656602056.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 322915 + ... + 324941.

It is an arithmetic number, because the mean of its divisors is an integer number (20267325).

Almost surely, 2^656602056 is an apocalyptic number.

656602056 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 656602056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (972831600).

656602056 is an abundant number, since it is smaller than the sum of its proper divisors (1289061144).

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

656602056 is a wasteful number, since it uses less digits than its factorization.

656602056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2459 (or 2452 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 656602056 is about 25624.2474230952. The cubic root of 656602056 is about 869.1620310333.

The spelling of 656602056 in words is "six hundred fifty-six million, six hundred two thousand, fifty-six".