18361344146 has 8 divisors (see below), whose sum is σ = 28991596080. Its totient is φ = 8697478788.

The previous prime is 18361344143. The next prime is 18361344161. The reversal of 18361344146 is 64144316381.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (18361344143) 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, 241596596 + ... + 241596671.

It is an arithmetic number, because the mean of its divisors is an integer number (3623949510).

Almost surely, 2^18361344146 is an apocalyptic number.

18361344146 is a deficient number, since it is larger than the sum of its proper divisors (10630251934).

18361344146 is a wasteful number, since it uses less digits than its factorization.

18361344146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483193288.

The product of its digits is 165888, while the sum is 41.

The spelling of 18361344146 in words is "eighteen billion, three hundred sixty-one million, three hundred forty-four thousand, one hundred forty-six".