556801997130 has 80 divisors (see below), whose sum is σ = 1575977626080. Its totient is φ = 140665763808.

The previous prime is 556801997119. The next prime is 556801997131. The reversal of 556801997130 is 31799108655.

556801997130 is a `hidden beast` number, since 5 + 568 + 0 + 1 + 9 + 9 + 71 + 3 + 0 = 666.

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 (556801997131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 18074344 + ... + 18105123.

It is an arithmetic number, because the mean of its divisors is an integer number (19699720326).

Almost surely, 2^556801997130 is an apocalyptic number.

556801997130 is an abundant number, since it is smaller than the sum of its proper divisors (1019175628950).

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

556801997130 is a wasteful number, since it uses less digits than its factorization.

556801997130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36179505 (or 36179496 counting only the distinct ones).

The product of its (nonzero) digits is 2041200, while the sum is 54.

The spelling of 556801997130 in words is "five hundred fifty-six billion, eight hundred one million, nine hundred ninety-seven thousand, one hundred thirty".