28080038166 has 32 divisors (see below), whose sum is σ = 56586392160. Its totient is φ = 9289223424.

The previous prime is 28080038131. The next prime is 28080038177. The reversal of 28080038166 is 66183008082.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 397416 + ... + 462708.

It is an arithmetic number, because the mean of its divisors is an integer number (1768324755).

Almost surely, 2^28080038166 is an apocalyptic number.

28080038166 is an abundant number, since it is smaller than the sum of its proper divisors (28506353994).

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

28080038166 is a wasteful number, since it uses less digits than its factorization.

28080038166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65840.

The product of its (nonzero) digits is 110592, while the sum is 42.

The spelling of 28080038166 in words is "twenty-eight billion, eighty million, thirty-eight thousand, one hundred sixty-six".