555431130220 has 48 divisors (see below), whose sum is σ = 1228259460960. Its totient is φ = 210399565824.

The previous prime is 555431130131. The next prime is 555431130263. The reversal of 555431130220 is 22031134555.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 734602 + ... + 1284718.

It is an arithmetic number, because the mean of its divisors is an integer number (25588738770).

Almost surely, 2^555431130220 is an apocalyptic number.

It is an amenable number.

555431130220 is an abundant number, since it is smaller than the sum of its proper divisors (672828330740).

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

555431130220 is a wasteful number, since it uses less digits than its factorization.

555431130220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552802 (or 552800 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

Adding to 555431130220 its reverse (22031134555), we get a palindrome (577462264775).

The spelling of 555431130220 in words is "five hundred fifty-five billion, four hundred thirty-one million, one hundred thirty thousand, two hundred twenty".