5518116351231 has 16 divisors (see below), whose sum is σ = 8243279465088. Its totient is φ = 3253926103200.

The previous prime is 5518116351169. The next prime is 5518116351257. The reversal of 5518116351231 is 1321536118155.

It is not a de Polignac number, because 5518116351231 - 2¹³ = 5518116343039 is a prime.

It is a super-2 number, since 2×5518116351231² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5518116356231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2259669685 + ... + 2259672126.

It is an arithmetic number, because the mean of its divisors is an integer number (515204966568).

Almost surely, 2^{5518116351231} is an apocalyptic number.

5518116351231 is a deficient number, since it is larger than the sum of its proper divisors (2725163113857).

5518116351231 is a wasteful number, since it uses less digits than its factorization.

5518116351231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4519341862.

The product of its digits is 108000, while the sum is 42.

The spelling of 5518116351231 in words is "five trillion, five hundred eighteen billion, one hundred sixteen million, three hundred fifty-one thousand, two hundred thirty-one".