80512660578 has 48 divisors (see below), whose sum is σ = 187337816064. Its totient is φ = 23000836320.

The previous prime is 80512660517. The next prime is 80512660597. The reversal of 80512660578 is 87506621508.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4732848 + ... + 4749828.

It is an arithmetic number, because the mean of its divisors is an integer number (3902871168).

Almost surely, 2^80512660578 is an apocalyptic number.

80512660578 is an abundant number, since it is smaller than the sum of its proper divisors (106825155486).

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

80512660578 is a wasteful number, since it uses less digits than its factorization.

80512660578 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33127 (or 33120 counting only the distinct ones).

The product of its (nonzero) digits is 806400, while the sum is 48.

The spelling of 80512660578 in words is "eighty billion, five hundred twelve million, six hundred sixty thousand, five hundred seventy-eight".