16372291320 has 1024 divisors, whose sum is σ = 74226585600. Its totient is φ = 3105423360.

The previous prime is 16372291261. The next prime is 16372291333. The reversal of 16372291320 is 2319227361.

16372291320 is a `hidden beast` number, since 1 + 637 + 2 + 2 + 9 + 13 + 2 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 255 ways as a sum of consecutive naturals, for example, 52307484 + ... + 52307796.

It is an arithmetic number, because the mean of its divisors is an integer number (72486900).

Almost surely, 2^16372291320 is an apocalyptic number.

16372291320 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 16372291320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37113292800).

16372291320 is an abundant number, since it is smaller than the sum of its proper divisors (57854294280).

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

16372291320 is a wasteful number, since it uses less digits than its factorization.

16372291320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405 (or 395 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The spelling of 16372291320 in words is "sixteen billion, three hundred seventy-two million, two hundred ninety-one thousand, three hundred twenty".