80536583605 has 16 divisors (see below), whose sum is σ = 97345566720. Its totient is φ = 63962586688.

The previous prime is 80536583599. The next prime is 80536583623. The reversal of 80536583605 is 50638563508.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 80536583605 - 2²⁷ = 80402365877 is a prime.

It is a super-2 number, since 2×80536583605² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 522636 + ... + 658954.

It is an arithmetic number, because the mean of its divisors is an integer number (6084097920).

Almost surely, 2^80536583605 is an apocalyptic number.

It is an amenable number.

80536583605 is a deficient number, since it is larger than the sum of its proper divisors (16808983115).

80536583605 is a wasteful number, since it uses less digits than its factorization.

80536583605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137180.

The product of its (nonzero) digits is 2592000, while the sum is 49.

The spelling of 80536583605 in words is "eighty billion, five hundred thirty-six million, five hundred eighty-three thousand, six hundred five".