18167710212 has 192 divisors, whose sum is σ = 52312780800. Its totient is φ = 5423362560.

The previous prime is 18167710199. The next prime is 18167710247. The reversal of 18167710212 is 21201776181.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8909089 + ... + 8911127.

It is an arithmetic number, because the mean of its divisors is an integer number (272462400).

Almost surely, 2^18167710212 is an apocalyptic number.

18167710212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18167710212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26156390400).

18167710212 is an abundant number, since it is smaller than the sum of its proper divisors (34145070588).

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

18167710212 is a wasteful number, since it uses less digits than its factorization.

18167710212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2303 (or 2295 counting only the distinct ones).

The product of its (nonzero) digits is 9408, while the sum is 36.

The spelling of 18167710212 in words is "eighteen billion, one hundred sixty-seven million, seven hundred ten thousand, two hundred twelve".