18191150332 has 6 divisors (see below), whose sum is σ = 31834513088. Its totient is φ = 9095575164.

The previous prime is 18191150323. The next prime is 18191150377. The reversal of 18191150332 is 23305119181.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2273893788 + ... + 2273893795.

Almost surely, 2^18191150332 is an apocalyptic number.

It is an amenable number.

18191150332 is a deficient number, since it is larger than the sum of its proper divisors (13643362756).

18191150332 is a wasteful number, since it uses less digits than its factorization.

18191150332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4547787587 (or 4547787585 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 34.

The spelling of 18191150332 in words is "eighteen billion, one hundred ninety-one million, one hundred fifty thousand, three hundred thirty-two".