999432932160 has 672 divisors, whose sum is σ = 3643980560640. Its totient is φ = 230661292032.

The previous prime is 999432932117. The next prime is 999432932161. The reversal of 999432932160 is 61239234999.

It is a self number, because there is not a number n which added to its sum of digits gives 999432932160.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999432932161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1756472356 + ... + 1756472924.

It is an arithmetic number, because the mean of its divisors is an integer number (5422590120).

Almost surely, 2^999432932160 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 999432932160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1821990280320).

999432932160 is an abundant number, since it is smaller than the sum of its proper divisors (2644547628480).

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

999432932160 is a wasteful number, since it uses less digits than its factorization.

999432932160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1123 (or 1096 counting only the distinct ones).

The product of its (nonzero) digits is 5668704, while the sum is 57.

The spelling of 999432932160 in words is "nine hundred ninety-nine billion, four hundred thirty-two million, nine hundred thirty-two thousand, one hundred sixty".