16368996840 has 192 divisors, whose sum is σ = 58669142400. Its totient is φ = 3640315392.

The previous prime is 16368996767. The next prime is 16368996851. The reversal of 16368996840 is 4869986361.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 179941 + ... + 255179.

It is an arithmetic number, because the mean of its divisors is an integer number (305568450).

Almost surely, 2^16368996840 is an apocalyptic number.

16368996840 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 16368996840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29334571200).

16368996840 is an abundant number, since it is smaller than the sum of its proper divisors (42300145560).

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

16368996840 is a wasteful number, since it uses less digits than its factorization.

16368996840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75304 (or 75293 counting only the distinct ones).

The product of its (nonzero) digits is 13436928, while the sum is 60.

The spelling of 16368996840 in words is "sixteen billion, three hundred sixty-eight million, nine hundred ninety-six thousand, eight hundred forty".