111161153620 has 96 divisors (see below), whose sum is σ = 258194506752. Its totient is φ = 40197168000.

The previous prime is 111161153563. The next prime is 111161153659. The reversal of 111161153620 is 26351161111.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4806685 + ... + 4829755.

It is an arithmetic number, because the mean of its divisors is an integer number (2689526112).

Almost surely, 2^111161153620 is an apocalyptic number.

111161153620 is a gapful number since it is divisible by the number (10) 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 111161153620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (129097253376).

111161153620 is an abundant number, since it is smaller than the sum of its proper divisors (147033353132).

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

111161153620 is a wasteful number, since it uses less digits than its factorization.

111161153620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23294 (or 23270 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 28.

The spelling of 111161153620 in words is "one hundred eleven billion, one hundred sixty-one million, one hundred fifty-three thousand, six hundred twenty".