18163823002 has 16 divisors (see below), whose sum is σ = 29610753480. Its totient is φ = 8306390592.

The previous prime is 18163822997. The next prime is 18163823017. The reversal of 18163823002 is 20032836181.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 15545351761 + 2618471241 = 124681^2 + 51171^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3201793 + ... + 3207460.

Almost surely, 2^18163823002 is an apocalyptic number.

18163823002 is a deficient number, since it is larger than the sum of its proper divisors (11446930478).

18163823002 is a wasteful number, since it uses less digits than its factorization.

18163823002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6409377.

The product of its (nonzero) digits is 13824, while the sum is 34.

The spelling of 18163823002 in words is "eighteen billion, one hundred sixty-three million, eight hundred twenty-three thousand, two".