6556996224 has 64 divisors (see below), whose sum is σ = 19352256000. Its totient is φ = 2185664256.

The previous prime is 6556996223. The next prime is 6556996247. The reversal of 6556996224 is 4226996556.

6556996224 is a `hidden beast` number, since 6 + 5 + 5 + 6 + 9 + 9 + 622 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (6556996223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 945184 + ... + 952095.

It is an arithmetic number, because the mean of its divisors is an integer number (302379000).

Almost surely, 2^6556996224 is an apocalyptic number.

6556996224 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

6556996224 is an abundant number, since it is smaller than the sum of its proper divisors (12795259776).

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

6556996224 is a wasteful number, since it uses less digits than its factorization.

6556996224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1897302 (or 1897284 counting only the distinct ones).

The product of its digits is 6998400, while the sum is 54.

The square root of 6556996224 is about 80975.2815617210. The cubic root of 6556996224 is about 1871.6945589760.

The spelling of 6556996224 in words is "six billion, five hundred fifty-six million, nine hundred ninety-six thousand, two hundred twenty-four".