80111172800 has 84 divisors (see below), whose sum is σ = 197187479640. Its totient is φ = 32034078720.

The previous prime is 80111172781. The next prime is 80111172803. The reversal of 80111172800 is 827111108.

It is not an unprimeable number, because it can be changed into a prime (80111172803) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6616352 + ... + 6628448.

Almost surely, 2^80111172800 is an apocalyptic number.

80111172800 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

80111172800 is an abundant number, since it is smaller than the sum of its proper divisors (117076306840).

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

80111172800 is a wasteful number, since it uses less digits than its factorization.

80111172800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16258 (or 16243 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 29.

Adding to 80111172800 its reverse (827111108), we get a palindrome (80938283908).

It can be divided in two parts, 8011 and 1172800, that added together give a palindrome (1180811).

The spelling of 80111172800 in words is "eighty billion, one hundred eleven million, one hundred seventy-two thousand, eight hundred".