111516160631 has 2 divisors, whose sum is σ = 111516160632. Its totient is φ = 111516160630.

The previous prime is 111516160627. The next prime is 111516160757. The reversal of 111516160631 is 136061615111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111516160631 - 2² = 111516160627 is a prime.

It is a super-2 number, since 2×111516160631² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111516190631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55758080315 + 55758080316.

It is an arithmetic number, because the mean of its divisors is an integer number (55758080316).

Almost surely, 2^111516160631 is an apocalyptic number.

111516160631 is a deficient number, since it is larger than the sum of its proper divisors (1).

111516160631 is an equidigital number, since it uses as much as digits as its factorization.

111516160631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 32.

Adding to 111516160631 its reverse (136061615111), we get a palindrome (247577775742).

The spelling of 111516160631 in words is "one hundred eleven billion, five hundred sixteen million, one hundred sixty thousand, six hundred thirty-one".