80181418 has 16 divisors (see below), whose sum is σ = 128024064. Its totient is φ = 37531840.

The previous prime is 80181397. The next prime is 80181419. The reversal of 80181418 is 81418108.

It is a self number, because there is not a number n which added to its sum of digits gives 80181418.

It is not an unprimeable number, because it can be changed into a prime (80181419) 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, 321 + ... + 12667.

It is an arithmetic number, because the mean of its divisors is an integer number (8001504).

Almost surely, 2^80181418 is an apocalyptic number.

80181418 is a deficient number, since it is larger than the sum of its proper divisors (47842646).

80181418 is a wasteful number, since it uses less digits than its factorization.

80181418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12557.

The product of its (nonzero) digits is 2048, while the sum is 31.

The square root of 80181418 is about 8954.4077414422. The cubic root of 80181418 is about 431.2124031356.

The spelling of 80181418 in words is "eighty million, one hundred eighty-one thousand, four hundred eighteen".