18335168334 has 24 divisors (see below), whose sum is σ = 45401369520. Its totient is φ = 5238619488.

The previous prime is 18335168317. The next prime is 18335168339. The reversal of 18335168334 is 43386153381.

It is a super-2 number, since 2×18335168334² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18335168334.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18335168339) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 72758479 + ... + 72758730.

It is an arithmetic number, because the mean of its divisors is an integer number (1891723730).

Almost surely, 2^18335168334 is an apocalyptic number.

18335168334 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

18335168334 is an abundant number, since it is smaller than the sum of its proper divisors (27066201186).

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

18335168334 is a wasteful number, since it uses less digits than its factorization.

18335168334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145517224 (or 145517221 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The spelling of 18335168334 in words is "eighteen billion, three hundred thirty-five million, one hundred sixty-eight thousand, three hundred thirty-four".