80111100112 has 40 divisors (see below), whose sum is σ = 161256855240. Its totient is φ = 38508288000.

The previous prime is 80111100071. The next prime is 80111100119. The reversal of 80111100112 is 21100111108.

It can be written as a sum of positive squares in 4 ways, for example, as 24364096 + 80086736016 = 4936^2 + 282996^2 .

It is a super-2 number, since 2×80111100112² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80111100119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262389 + ... + 478612.

It is an arithmetic number, because the mean of its divisors is an integer number (4031421381).

Almost surely, 2^80111100112 is an apocalyptic number.

It is an amenable number.

80111100112 is an abundant number, since it is smaller than the sum of its proper divisors (81145755128).

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

80111100112 is a wasteful number, since it uses less digits than its factorization.

80111100112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741271 (or 741265 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 16.

The spelling of 80111100112 in words is "eighty billion, one hundred eleven million, one hundred thousand, one hundred twelve".