16323197515900 has 144 divisors (see below), whose sum is σ = 39510133189632. Its totient is φ = 5803437024000.

The previous prime is 16323197515847. The next prime is 16323197515931. The reversal of 16323197515900 is 951579132361.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10477357 + ... + 11934043.

It is an arithmetic number, because the mean of its divisors is an integer number (274375924928).

Almost surely, 2^{16323197515900} is an apocalyptic number.

16323197515900 is a gapful number since it is divisible by the number (10) 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 16323197515900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19755066594816).

16323197515900 is an abundant number, since it is smaller than the sum of its proper divisors (23186935673732).

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

16323197515900 is a wasteful number, since it uses less digits than its factorization.

16323197515900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1456940 (or 1456933 counting only the distinct ones).

The product of its (nonzero) digits is 1530900, while the sum is 52.

The spelling of 16323197515900 in words is "sixteen trillion, three hundred twenty-three billion, one hundred ninety-seven million, five hundred fifteen thousand, nine hundred".