18541161232 has 40 divisors (see below), whose sum is σ = 39224587680. Its totient is φ = 8420206080.

The previous prime is 18541161217. The next prime is 18541161241. The reversal of 18541161232 is 23216114581.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150744 + ... + 244552.

It is an arithmetic number, because the mean of its divisors is an integer number (980614692).

Almost surely, 2^18541161232 is an apocalyptic number.

It is an amenable number.

18541161232 is an abundant number, since it is smaller than the sum of its proper divisors (20683426448).

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

18541161232 is a wasteful number, since it uses less digits than its factorization.

18541161232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94951 (or 94945 counting only the distinct ones).

The product of its digits is 11520, while the sum is 34.

The spelling of 18541161232 in words is "eighteen billion, five hundred forty-one million, one hundred sixty-one thousand, two hundred thirty-two".