111551377337136 has 160 divisors (see below), whose sum is σ = 349335437529600. Its totient is φ = 33800240113920.

The previous prime is 111551377336939. The next prime is 111551377337161. The reversal of 111551377337136 is 631733773155111.

111551377337136 is a `hidden beast` number, since 1 + 1 + 1 + 551 + 3 + 7 + 73 + 3 + 7 + 13 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 49210485 + ... + 51427371.

It is an arithmetic number, because the mean of its divisors is an integer number (2183346484560).

Almost surely, 2^{111551377337136} is an apocalyptic number.

111551377337136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111551377337136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174667718764800).

111551377337136 is an abundant number, since it is smaller than the sum of its proper divisors (237784060192464).

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

111551377337136 is a wasteful number, since it uses less digits than its factorization.

111551377337136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2227504 (or 2227492 counting only the distinct ones).

The product of its digits is 4167450, while the sum is 54.

The spelling of 111551377337136 in words is "one hundred eleven trillion, five hundred fifty-one billion, three hundred seventy-seven million, three hundred thirty-seven thousand, one hundred thirty-six".