551613776136 has 128 divisors (see below), whose sum is σ = 1435515523200. Its totient is φ = 176514508800.

The previous prime is 551613776123. The next prime is 551613776143. The reversal of 551613776136 is 631677316155.

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, 14260470 + ... + 14299098.

It is an arithmetic number, because the mean of its divisors is an integer number (11214965025).

Almost surely, 2^551613776136 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 551613776136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (717757761600).

551613776136 is an abundant number, since it is smaller than the sum of its proper divisors (883901747064).

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

551613776136 is a wasteful number, since it uses less digits than its factorization.

551613776136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38919 (or 38915 counting only the distinct ones).

The product of its digits is 2381400, while the sum is 51.

The spelling of 551613776136 in words is "five hundred fifty-one billion, six hundred thirteen million, seven hundred seventy-six thousand, one hundred thirty-six".