555658636312 has 128 divisors (see below), whose sum is σ = 1244254556160. Its totient is φ = 230021130240.

The previous prime is 555658636237. The next prime is 555658636321. The reversal of 555658636312 is 213636856555.

555658636312 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 2×555658636312² (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, 10994733 + ... + 11045155.

It is an arithmetic number, because the mean of its divisors is an integer number (9720738720).

Almost surely, 2^555658636312 is an apocalyptic number.

555658636312 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 555658636312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (622127278080).

555658636312 is an abundant number, since it is smaller than the sum of its proper divisors (688595919848).

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

555658636312 is a wasteful number, since it uses less digits than its factorization.

555658636312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50753 (or 50749 counting only the distinct ones).

The product of its digits is 19440000, while the sum is 55.

The spelling of 555658636312 in words is "five hundred fifty-five billion, six hundred fifty-eight million, six hundred thirty-six thousand, three hundred twelve".