557481538158 has 64 divisors (see below), whose sum is σ = 1169858764800. Its totient is φ = 176769383648.

The previous prime is 557481538109. The next prime is 557481538171. The reversal of 557481538158 is 851835184755.

It is a happy number.

557481538158 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×557481538158² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

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, 21727285 + ... + 21752927.

It is an arithmetic number, because the mean of its divisors is an integer number (18279043200).

Almost surely, 2^557481538158 is an apocalyptic number.

557481538158 is an abundant number, since it is smaller than the sum of its proper divisors (612377226642).

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

557481538158 is a wasteful number, since it uses less digits than its factorization.

557481538158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26533.

The product of its digits is 26880000, while the sum is 60.

The spelling of 557481538158 in words is "five hundred fifty-seven billion, four hundred eighty-one million, five hundred thirty-eight thousand, one hundred fifty-eight".