18080111730 has 16 divisors (see below), whose sum is σ = 43392268224. Its totient is φ = 4821363120.

The previous prime is 18080111729. The next prime is 18080111743. The reversal of 18080111730 is 3711108081.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (30), and also a Moran number because the ratio is a prime number: 602670391 = 18080111730 / (1 + 8 + 0 + 8 + 0 + 1 + 1 + 1 + 7 + 3 + 0).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301335166 + ... + 301335225.

It is an arithmetic number, because the mean of its divisors is an integer number (2712016764).

Almost surely, 2^18080111730 is an apocalyptic number.

18080111730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18080111730 is an abundant number, since it is smaller than the sum of its proper divisors (25312156494).

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

18080111730 is a wasteful number, since it uses less digits than its factorization.

18080111730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 602670401.

The product of its (nonzero) digits is 1344, while the sum is 30.

The spelling of 18080111730 in words is "eighteen billion, eighty million, one hundred eleven thousand, seven hundred thirty".