80111966 has 16 divisors (see below), whose sum is σ = 131589360. Its totient is φ = 36276480.

The previous prime is 80111963. The next prime is 80111989. The reversal of 80111966 is 66911108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80111963) 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, 851 + ... + 12686.

It is an arithmetic number, because the mean of its divisors is an integer number (8224335).

Almost surely, 2^80111966 is an apocalyptic number.

80111966 is a deficient number, since it is larger than the sum of its proper divisors (51477394).

80111966 is a wasteful number, since it uses less digits than its factorization.

80111966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13819.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 80111966 is about 8950.5288111932. The cubic root of 80111966 is about 431.0878638273.

The spelling of 80111966 in words is "eighty million, one hundred eleven thousand, nine hundred sixty-six".