551113565311155 has 144 divisors (see below), whose sum is σ = 1127506822444800. Its totient is φ = 229027327562880.

The previous prime is 551113565311109. The next prime is 551113565311193.

551113565311155 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 551113565311155 - 2¹⁶ = 551113565245619 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 3859618672 + ... + 3859761458.

It is an arithmetic number, because the mean of its divisors is an integer number (7829908489200).

Almost surely, 2^{551113565311155} is an apocalyptic number.

551113565311155 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

551113565311155 is an abundant number, since it is smaller than the sum of its proper divisors (576393257133645).

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

551113565311155 is a wasteful number, since it uses less digits than its factorization.

551113565311155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186230 (or 186212 counting only the distinct ones).

The product of its digits is 843750, while the sum is 48.

The spelling of 551113565311155 in words is "five hundred fifty-one trillion, one hundred thirteen billion, five hundred sixty-five million, three hundred eleven thousand, one hundred fifty-five".