6656756900 has 36 divisors (see below), whose sum is σ = 14781106032. Its totient is φ = 2600777760.

The previous prime is 6656756879. The next prime is 6656756903. The reversal of 6656756900 is 96576566.

It is a super-2 number, since 2×6656756900² = 88624824851395220000, which contains 22 as substring.

It is a Smith number, since the sum of its digits (50) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (50).

It is not an unprimeable number, because it can be changed into a prime (6656756903) 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 11 ways as a sum of consecutive naturals, for example, 769742 + ... + 778341.

Almost surely, 2^6656756900 is an apocalyptic number.

It is an amenable number.

6656756900 is an abundant number, since it is smaller than the sum of its proper divisors (8124349132).

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

6656756900 is a wasteful number, since it uses less digits than its factorization.

6656756900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548140 (or 1548133 counting only the distinct ones).

The product of its (nonzero) digits is 2041200, while the sum is 50.

The square root of 6656756900 is about 81588.9508450746. The cubic root of 6656756900 is about 1881.1390505679.

The spelling of 6656756900 in words is "six billion, six hundred fifty-six million, seven hundred fifty-six thousand, nine hundred".