204223154432 has 72 divisors (see below), whose sum is σ = 464042779200. Its totient is φ = 88792647680.

The previous prime is 204223154413. The next prime is 204223154449. The reversal of 204223154432 is 234451322402.

It is a Harshad number since it is a multiple of its sum of digits (32).

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, 1511807 + ... + 1641342.

It is an arithmetic number, because the mean of its divisors is an integer number (6445038600).

Almost surely, 2^204223154432 is an apocalyptic number.

204223154432 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

204223154432 is an abundant number, since it is smaller than the sum of its proper divisors (259819624768).

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

204223154432 is a wasteful number, since it uses less digits than its factorization.

204223154432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3153199 (or 3153185 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 204223154432 its reverse (234451322402), we get a palindrome (438674476834).

The spelling of 204223154432 in words is "two hundred four billion, two hundred twenty-three million, one hundred fifty-four thousand, four hundred thirty-two".