111163631663 has 16 divisors (see below), whose sum is σ = 129605059584. Its totient is φ = 93378505920.

The previous prime is 111163631617. The next prime is 111163631681. The reversal of 111163631663 is 366136361111.

It is a happy number.

It is not a de Polignac number, because 111163631663 - 2⁶ = 111163631599 is a prime.

It is a super-2 number, since 2×111163631663² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111163631603) 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, 586670 + ... + 752667.

It is an arithmetic number, because the mean of its divisors is an integer number (8100316224).

Almost surely, 2^111163631663 is an apocalyptic number.

111163631663 is a deficient number, since it is larger than the sum of its proper divisors (18441427921).

111163631663 is a wasteful number, since it uses less digits than its factorization.

111163631663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1339582.

The product of its digits is 34992, while the sum is 38.

Adding to 111163631663 its reverse (366136361111), we get a palindrome (477299992774).

The spelling of 111163631663 in words is "one hundred eleven billion, one hundred sixty-three million, six hundred thirty-one thousand, six hundred sixty-three".