556620152832 has 128 divisors (see below), whose sum is σ = 1649222353200. Its totient is φ = 185539756032.

The previous prime is 556620152789. The next prime is 556620152839. The reversal of 556620152832 is 238251026655.

556620152832 is a `hidden beast` number, since 5 + 5 + 6 + 620 + 15 + 2 + 8 + 3 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (556620152839) 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, 570168 + ... + 1199304.

Almost surely, 2^556620152832 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 556620152832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (824611176600).

556620152832 is an abundant number, since it is smaller than the sum of its proper divisors (1092602200368).

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

556620152832 is an frugal number, since it uses more digits than its factorization.

556620152832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629176 (or 629142 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 45.

The spelling of 556620152832 in words is "five hundred fifty-six billion, six hundred twenty million, one hundred fifty-two thousand, eight hundred thirty-two".