185819820040080 has 160 divisors (see below), whose sum is σ = 640058806590720. Its totient is φ = 49550964157440.

The previous prime is 185819820040031. The next prime is 185819820040103. The reversal of 185819820040080 is 80040028918581.

185819820040080 is a `hidden beast` number, since 1 + 8 + 5 + 81 + 9 + 82 + 0 + 0 + 400 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 185819820039999 and 185819820040026.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 110885709 + ... + 112549011.

It is an arithmetic number, because the mean of its divisors is an integer number (4000367541192).

Almost surely, 2^{185819820040080} is an apocalyptic number.

185819820040080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

185819820040080 is an abundant number, since it is smaller than the sum of its proper divisors (454238986550640).

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

185819820040080 is a wasteful number, since it uses less digits than its factorization.

185819820040080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715046 (or 1715034 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 54.

The spelling of 185819820040080 in words is "one hundred eighty-five trillion, eight hundred nineteen billion, eight hundred twenty million, forty thousand, eighty".