111161233160 has 32 divisors (see below), whose sum is σ = 250127697600. Its totient is φ = 44461840320.

The previous prime is 111161233097. The next prime is 111161233177. The reversal of 111161233160 is 61332161111.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 683315 + ... + 830205.

It is an arithmetic number, because the mean of its divisors is an integer number (7816490550).

Almost surely, 2^111161233160 is an apocalyptic number.

111161233160 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111161233160 is an abundant number, since it is smaller than the sum of its proper divisors (138966464440).

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

111161233160 is a wasteful number, since it uses less digits than its factorization.

111161233160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165821 (or 165817 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 26.

Adding to 111161233160 its reverse (61332161111), we get a palindrome (172493394271).

The spelling of 111161233160 in words is "one hundred eleven billion, one hundred sixty-one million, two hundred thirty-three thousand, one hundred sixty".