16939743744 has 640 divisors, whose sum is σ = 59710464000. Its totient is φ = 4226826240.

The previous prime is 16939743719. The next prime is 16939743767. The reversal of 16939743744 is 44734793961.

It is a super-2 number, since 2×16939743744² (a number of 21 digits) contains 22 as substring.

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 63 ways as a sum of consecutive naturals, for example, 214427097 + ... + 214427175.

It is an arithmetic number, because the mean of its divisors is an integer number (93297600).

Almost surely, 2^16939743744 is an apocalyptic number.

16939743744 is a gapful number since it is divisible by the number (14) 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 16939743744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29855232000).

16939743744 is an abundant number, since it is smaller than the sum of its proper divisors (42770720256).

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

16939743744 is an equidigital number, since it uses as much as digits as its factorization.

16939743744 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169 (or 139 counting only the distinct ones).

The product of its digits is 13716864, while the sum is 57.

The spelling of 16939743744 in words is "sixteen billion, nine hundred thirty-nine million, seven hundred forty-three thousand, seven hundred forty-four".