80657134236 has 144 divisors (see below), whose sum is σ = 257560884000. Its totient is φ = 21689289216.

The previous prime is 80657134193. The next prime is 80657134241. The reversal of 80657134236 is 63243175608.

80657134236 is a `hidden beast` number, since 8 + 0 + 6 + 571 + 3 + 42 + 36 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 80657134191 and 80657134200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 358311 + ... + 538238.

It is an arithmetic number, because the mean of its divisors is an integer number (1788617250).

Almost surely, 2^80657134236 is an apocalyptic number.

It is an amenable number.

80657134236 is an abundant number, since it is smaller than the sum of its proper divisors (176903749764).

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

80657134236 is a wasteful number, since it uses less digits than its factorization.

80657134236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 896593 (or 896578 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 80657134236 in words is "eighty billion, six hundred fifty-seven million, one hundred thirty-four thousand, two hundred thirty-six".