80506378164 has 12 divisors (see below), whose sum is σ = 187848215744. Its totient is φ = 26835459384.

The previous prime is 80506378163. The next prime is 80506378177. The reversal of 80506378164 is 46187360508.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80506378163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3354432412 + ... + 3354432435.

Almost surely, 2^80506378164 is an apocalyptic number.

It is an amenable number.

80506378164 is an abundant number, since it is smaller than the sum of its proper divisors (107341837580).

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

80506378164 is a wasteful number, since it uses less digits than its factorization.

80506378164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6708864854 (or 6708864852 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 80506378164 in words is "eighty billion, five hundred six million, three hundred seventy-eight thousand, one hundred sixty-four".