18900167022 has 32 divisors (see below), whose sum is σ = 45818588160. Its totient is φ = 5727323160.

The previous prime is 18900166991. The next prime is 18900167047. The reversal of 18900167022 is 22076100981.

It is a congruent number.

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, 15908638 + ... + 15909825.

It is an arithmetic number, because the mean of its divisors is an integer number (1431830880).

Almost surely, 2^18900167022 is an apocalyptic number.

18900167022 is an abundant number, since it is smaller than the sum of its proper divisors (26918421138).

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

18900167022 is a wasteful number, since it uses less digits than its factorization.

18900167022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31818485 (or 31818479 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The spelling of 18900167022 in words is "eighteen billion, nine hundred million, one hundred sixty-seven thousand, twenty-two".