18585152152 has 16 divisors (see below), whose sum is σ = 39825326160. Its totient is φ = 7965065184.

The previous prime is 18585152137. The next prime is 18585152191. The reversal of 18585152152 is 25125158581.

It is a happy number.

It is a super-2 number, since 2×18585152152² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 18585152099 and 18585152108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165938803 + ... + 165938914.

It is an arithmetic number, because the mean of its divisors is an integer number (2489082885).

Almost surely, 2^18585152152 is an apocalyptic number.

It is an amenable number.

18585152152 is an abundant number, since it is smaller than the sum of its proper divisors (21240174008).

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

18585152152 is a wasteful number, since it uses less digits than its factorization.

18585152152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 331877730 (or 331877726 counting only the distinct ones).

The product of its digits is 160000, while the sum is 43.

The spelling of 18585152152 in words is "eighteen billion, five hundred eighty-five million, one hundred fifty-two thousand, one hundred fifty-two".