111157137156 has 48 divisors (see below), whose sum is σ = 279589258368. Its totient is φ = 34168972800.

The previous prime is 111157137149. The next prime is 111157137163. The reversal of 111157137156 is 651731751111.

It is an interprime number because it is at equal distance from previous prime (111157137149) and next prime (111157137163).

It is a Harshad number since it is a multiple of its sum of digits (39).

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 15 ways as a sum of consecutive naturals, for example, 184725 + ... + 506396.

It is an arithmetic number, because the mean of its divisors is an integer number (5824776216).

Almost surely, 2^111157137156 is an apocalyptic number.

It is an amenable number.

111157137156 is an abundant number, since it is smaller than the sum of its proper divisors (168432121212).

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

111157137156 is a wasteful number, since it uses less digits than its factorization.

111157137156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692172 (or 692170 counting only the distinct ones).

The product of its digits is 22050, while the sum is 39.

Adding to 111157137156 its reverse (651731751111), we get a palindrome (762888888267).

The spelling of 111157137156 in words is "one hundred eleven billion, one hundred fifty-seven million, one hundred thirty-seven thousand, one hundred fifty-six".