18467161344 has 216 divisors, whose sum is σ = 54717062400. Its totient is φ = 5988003840.

The previous prime is 18467161331. The next prime is 18467161381. The reversal of 18467161344 is 44316176481.

18467161344 is a `hidden beast` number, since 184 + 6 + 71 + 61 + 344 = 666.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 18467161344.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12922422 + ... + 12923850.

Almost surely, 2^18467161344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18467161344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27358531200).

18467161344 is an abundant number, since it is smaller than the sum of its proper divisors (36249901056).

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

18467161344 is a wasteful number, since it uses less digits than its factorization.

18467161344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601 (or 1584 counting only the distinct ones).

The product of its digits is 387072, while the sum is 45.

The spelling of 18467161344 in words is "eighteen billion, four hundred sixty-seven million, one hundred sixty-one thousand, three hundred forty-four".