16701968563 has 32 divisors (see below), whose sum is σ = 21298083840. Its totient is φ = 12750566400.

The previous prime is 16701968561. The next prime is 16701968603. The reversal of 16701968563 is 36586910761.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 16701968563 - 2¹ = 16701968561 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16701968563.

It is not an unprimeable number, because it can be changed into a prime (16701968561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2332038 + ... + 2339188.

It is an arithmetic number, because the mean of its divisors is an integer number (665565120).

Almost surely, 2^16701968563 is an apocalyptic number.

16701968563 is a deficient number, since it is larger than the sum of its proper divisors (4596115277).

16701968563 is a wasteful number, since it uses less digits than its factorization.

16701968563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8227.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The spelling of 16701968563 in words is "sixteen billion, seven hundred one million, nine hundred sixty-eight thousand, five hundred sixty-three".