18670017020 has 24 divisors (see below), whose sum is σ = 39406064544. Its totient is φ = 7430096576.

The previous prime is 18670017007. The next prime is 18670017059. The reversal of 18670017020 is 2071007681.

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 7 ways as a sum of consecutive naturals, for example, 2365352 + ... + 2373231.

It is an arithmetic number, because the mean of its divisors is an integer number (1641919356).

Almost surely, 2^18670017020 is an apocalyptic number.

18670017020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18670017020 is an abundant number, since it is smaller than the sum of its proper divisors (20736047524).

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

18670017020 is a wasteful number, since it uses less digits than its factorization.

18670017020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4738789 (or 4738787 counting only the distinct ones).

The product of its (nonzero) digits is 4704, while the sum is 32.

The spelling of 18670017020 in words is "eighteen billion, six hundred seventy million, seventeen thousand, twenty".