16720383835 has 8 divisors (see below), whose sum is σ = 20148413760. Its totient is φ = 13320338304.

The previous prime is 16720383803. The next prime is 16720383839. The reversal of 16720383835 is 53838302761.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16720383835 - 2⁵ = 16720383803 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16720383839) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6994782 + ... + 6997171.

It is an arithmetic number, because the mean of its divisors is an integer number (2518551720).

Almost surely, 2^16720383835 is an apocalyptic number.

16720383835 is a deficient number, since it is larger than the sum of its proper divisors (3428029925).

16720383835 is a wasteful number, since it uses less digits than its factorization.

16720383835 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13992197.

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 16720383835 in words is "sixteen billion, seven hundred twenty million, three hundred eighty-three thousand, eight hundred thirty-five".