18580600040 has 32 divisors (see below), whose sum is σ = 41817482280. Its totient is φ = 7430260992.

The previous prime is 18580600013. The next prime is 18580600091. The reversal of 18580600040 is 4000608581.

It can be written as a sum of positive squares in 4 ways, for example, as 13084156996 + 5496443044 = 114386^2 + 74138^2 .

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 7 ways as a sum of consecutive naturals, for example, 95174 + ... + 214986.

Almost surely, 2^18580600040 is an apocalyptic number.

18580600040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18580600040 is an abundant number, since it is smaller than the sum of its proper divisors (23236882240).

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

18580600040 is a wasteful number, since it uses less digits than its factorization.

18580600040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123701 (or 123697 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 32.

The spelling of 18580600040 in words is "eighteen billion, five hundred eighty million, six hundred thousand, forty".