18332019152 has 20 divisors (see below), whose sum is σ = 35520838500. Its totient is φ = 9165351168.

The previous prime is 18332019137. The next prime is 18332019157. The reversal of 18332019152 is 25191023381.

It can be written as a sum of positive squares in 2 ways, for example, as 489471376 + 17842547776 = 22124^2 + 133576^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18332019157) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251708 + ... + 316260.

It is an arithmetic number, because the mean of its divisors is an integer number (1776041925).

Almost surely, 2^18332019152 is an apocalyptic number.

It is an amenable number.

18332019152 is a deficient number, since it is larger than the sum of its proper divisors (17188819348).

18332019152 is a wasteful number, since it uses less digits than its factorization.

18332019152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82310 (or 82304 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 35.

The spelling of 18332019152 in words is "eighteen billion, three hundred thirty-two million, nineteen thousand, one hundred fifty-two".