6636656260 has 48 divisors (see below), whose sum is σ = 15086934576. Its totient is φ = 2437742592.

The previous prime is 6636656239. The next prime is 6636656261. The reversal of 6636656260 is 626566366.

It can be written as a sum of positive squares in 8 ways, for example, as 111894084 + 6524762176 = 10578^2 + 80776^2 .

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 6636656260.

It is not an unprimeable number, because it can be changed into a prime (6636656261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15949 + ... + 116308.

It is an arithmetic number, because the mean of its divisors is an integer number (314311137).

Almost surely, 2^6636656260 is an apocalyptic number.

It is an amenable number.

6636656260 is an abundant number, since it is smaller than the sum of its proper divisors (8450278316).

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

6636656260 is a wasteful number, since it uses less digits than its factorization.

6636656260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132472 (or 132470 counting only the distinct ones).

The product of its (nonzero) digits is 1399680, while the sum is 46.

The square root of 6636656260 is about 81465.6753485786. The cubic root of 6636656260 is about 1879.2437221404.

The spelling of 6636656260 in words is "six billion, six hundred thirty-six million, six hundred fifty-six thousand, two hundred sixty".