5111161056660 has 96 divisors (see below), whose sum is σ = 14742354211200. Its totient is φ = 1322344300032.

The previous prime is 5111161056649. The next prime is 5111161056671. The reversal of 5111161056660 is 666501611115.

It is an interprime number because it is at equal distance from previous prime (5111161056649) and next prime (5111161056671).

It is a super-2 number, since 2×5111161056660² (a number of 26 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, 6263467 + ... + 7032306.

It is an arithmetic number, because the mean of its divisors is an integer number (153566189700).

Almost surely, 2^{5111161056660} is an apocalyptic number.

It is an amenable number.

5111161056660 is an abundant number, since it is smaller than the sum of its proper divisors (9631193154540).

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

5111161056660 is a wasteful number, since it uses less digits than its factorization.

5111161056660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13295977 (or 13295975 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 39.

Adding to 5111161056660 its reverse (666501611115), we get a palindrome (5777662667775).

The spelling of 5111161056660 in words is "five trillion, one hundred eleven billion, one hundred sixty-one million, fifty-six thousand, six hundred sixty".