200423101866 has 48 divisors (see below), whose sum is σ = 436715656416. Its totient is φ = 61290260928.

The previous prime is 200423101829. The next prime is 200423101883. The reversal of 200423101866 is 668101324002.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 441025 + ... + 771588.

It is an arithmetic number, because the mean of its divisors is an integer number (9098242842).

Almost surely, 2^200423101866 is an apocalyptic number.

200423101866 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

200423101866 is an abundant number, since it is smaller than the sum of its proper divisors (236292554550).

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

200423101866 is a wasteful number, since it uses less digits than its factorization.

200423101866 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212807 (or 1212794 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

Adding to 200423101866 its reverse (668101324002), we get a palindrome (868524425868).

The spelling of 200423101866 in words is "two hundred billion, four hundred twenty-three million, one hundred one thousand, eight hundred sixty-six".