111163564020 has 96 divisors (see below), whose sum is σ = 321649413120. Its totient is φ = 28656046080.

The previous prime is 111163564007. The next prime is 111163564027. The reversal of 111163564020 is 20465361111.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111163564027) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1695774 + ... + 1760106.

It is an arithmetic number, because the mean of its divisors is an integer number (3350514720).

Almost surely, 2^111163564020 is an apocalyptic number.

111163564020 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 111163564020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160824706560).

111163564020 is an abundant number, since it is smaller than the sum of its proper divisors (210485849100).

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

111163564020 is a wasteful number, since it uses less digits than its factorization.

111163564020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65305 (or 65303 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 30.

The spelling of 111163564020 in words is "one hundred eleven billion, one hundred sixty-three million, five hundred sixty-four thousand, twenty".