556420156512 has 192 divisors, whose sum is σ = 1599486787584. Its totient is φ = 167968074240.

The previous prime is 556420156493. The next prime is 556420156577. The reversal of 556420156512 is 215651024655.

It is a super-2 number, since 2×556420156512² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 504460153 + ... + 504461255.

It is an arithmetic number, because the mean of its divisors is an integer number (8330660352).

Almost surely, 2^556420156512 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 556420156512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (799743393792).

556420156512 is an abundant number, since it is smaller than the sum of its proper divisors (1043066631072).

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

556420156512 is a wasteful number, since it uses less digits than its factorization.

556420156512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2521 (or 2513 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 42.

The spelling of 556420156512 in words is "five hundred fifty-six billion, four hundred twenty million, one hundred fifty-six thousand, five hundred twelve".