18200163432 has 64 divisors (see below), whose sum is σ = 49755015360. Its totient is φ = 5502067200.

The previous prime is 18200163383. The next prime is 18200163469. The reversal of 18200163432 is 23436100281.

It is a self number, because there is not a number n which added to its sum of digits gives 18200163432.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29268 + ... + 193020.

It is an arithmetic number, because the mean of its divisors is an integer number (777422115).

Almost surely, 2^18200163432 is an apocalyptic number.

18200163432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18200163432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24877507680).

18200163432 is an abundant number, since it is smaller than the sum of its proper divisors (31554851928).

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

18200163432 is a wasteful number, since it uses less digits than its factorization.

18200163432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164194 (or 164190 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The spelling of 18200163432 in words is "eighteen billion, two hundred million, one hundred sixty-three thousand, four hundred thirty-two".