18160687290 has 32 divisors (see below), whose sum is σ = 43985525760. Its totient is φ = 4798419264.

The previous prime is 18160687273. The next prime is 18160687327. The reversal of 18160687290 is 9278606181.

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 15 ways as a sum of consecutive naturals, for example, 2773594 + ... + 2780133.

It is an arithmetic number, because the mean of its divisors is an integer number (1374547680).

Almost surely, 2^18160687290 is an apocalyptic number.

18160687290 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18160687290 is an abundant number, since it is smaller than the sum of its proper divisors (25824838470).

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

18160687290 is a wasteful number, since it uses less digits than its factorization.

18160687290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5553846.

The product of its (nonzero) digits is 290304, while the sum is 48.

The spelling of 18160687290 in words is "eighteen billion, one hundred sixty million, six hundred eighty-seven thousand, two hundred ninety".