16621068160 has 64 divisors (see below), whose sum is σ = 39845973600. Its totient is φ = 6629816320.

The previous prime is 16621068143. The next prime is 16621068179. The reversal of 16621068160 is 6186012661.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 193590 + ... + 265930.

Almost surely, 2^16621068160 is an apocalyptic number.

16621068160 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 16621068160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19922986800).

16621068160 is an abundant number, since it is smaller than the sum of its proper divisors (23224905440).

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

16621068160 is an equidigital number, since it uses as much as digits as its factorization.

16621068160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72719 (or 72707 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 16621068160 in words is "sixteen billion, six hundred twenty-one million, sixty-eight thousand, one hundred sixty".