80890195155 has 128 divisors (see below), whose sum is σ = 163460284416. Its totient is φ = 33181747200.

The previous prime is 80890195109. The next prime is 80890195171. The reversal of 80890195155 is 55159109808.

It is a happy number.

It is not a de Polignac number, because 80890195155 - 2²⁶ = 80823086291 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 80890195098 and 80890195107.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 35368422 + ... + 35370708.

It is an arithmetic number, because the mean of its divisors is an integer number (1277033472).

Almost surely, 2^80890195155 is an apocalyptic number.

80890195155 is an abundant number, since it is smaller than the sum of its proper divisors (82570089261).

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

80890195155 is a wasteful number, since it uses less digits than its factorization.

80890195155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2697.

The product of its (nonzero) digits is 648000, while the sum is 51.

The spelling of 80890195155 in words is "eighty billion, eight hundred ninety million, one hundred ninety-five thousand, one hundred fifty-five".