18157000652 has 48 divisors (see below), whose sum is σ = 36939006720. Its totient is φ = 7648600512.

The previous prime is 18157000633. The next prime is 18157000657. The reversal of 18157000652 is 25600075181.

It is not an unprimeable number, because it can be changed into a prime (18157000657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 437999 + ... + 477657.

It is an arithmetic number, because the mean of its divisors is an integer number (769562640).

Almost surely, 2^18157000652 is an apocalyptic number.

It is an amenable number.

18157000652 is an abundant number, since it is smaller than the sum of its proper divisors (18782006068).

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

18157000652 is a wasteful number, since it uses less digits than its factorization.

18157000652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39950 (or 39948 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 35.

The spelling of 18157000652 in words is "eighteen billion, one hundred fifty-seven million, six hundred fifty-two", and thus it is an aban number.