6656555200 has 42 divisors (see below), whose sum is σ = 16379290076. Its totient is φ = 2662621440.

The previous prime is 6656555159. The next prime is 6656555203. The reversal of 6656555200 is 25556566.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (6656555203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2078574 + ... + 2081773.

Almost surely, 2^6656555200 is an apocalyptic number.

It is an amenable number.

6656555200 is an abundant number, since it is smaller than the sum of its proper divisors (9722734876).

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

6656555200 is a wasteful number, since it uses less digits than its factorization.

6656555200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4160369 (or 4160354 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 40.

The square root of 6656555200 is about 81587.7147614762. The cubic root of 6656555200 is about 1881.1200508466.

The spelling of 6656555200 in words is "six billion, six hundred fifty-six million, five hundred fifty-five thousand, two hundred".