80189890165 has 96 divisors (see below), whose sum is σ = 128787240960. Its totient is φ = 46783059840.

The previous prime is 80189890159. The next prime is 80189890199. The reversal of 80189890165 is 56109898108.

It is not a de Polignac number, because 80189890165 - 2⁷ = 80189890037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6672592 + ... + 6684598.

It is an arithmetic number, because the mean of its divisors is an integer number (1341533760).

Almost surely, 2^80189890165 is an apocalyptic number.

It is an amenable number.

80189890165 is a deficient number, since it is larger than the sum of its proper divisors (48597350795).

80189890165 is a wasteful number, since it uses less digits than its factorization.

80189890165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12143 (or 12132 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 55.

The spelling of 80189890165 in words is "eighty billion, one hundred eighty-nine million, eight hundred ninety thousand, one hundred sixty-five".