80345171522 has 162 divisors, whose sum is σ = 163830724281. Its totient is φ = 29439305280.

The previous prime is 80345171519. The next prime is 80345171531. The reversal of 80345171522 is 22517154308.

It can be written as a sum of positive squares in 2 ways, for example, as 79726604881 + 618566641 = 282359^2 + 24871^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=200431.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 586461038 + ... + 586461174.

Almost surely, 2^80345171522 is an apocalyptic number.

80345171522 is an abundant number, since it is smaller than the sum of its proper divisors (83485552759).

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

80345171522 is a wasteful number, since it uses less digits than its factorization.

80345171522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350 (or 176 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 38.

The spelling of 80345171522 in words is "eighty billion, three hundred forty-five million, one hundred seventy-one thousand, five hundred twenty-two".