16961689696 has 24 divisors (see below), whose sum is σ = 38163802320. Its totient is φ = 7269295488.

The previous prime is 16961689691. The next prime is 16961689699. The reversal of 16961689696 is 69698616961.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16961689691) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37860691 + ... + 37861138.

It is an arithmetic number, because the mean of its divisors is an integer number (1590158430).

Almost surely, 2^16961689696 is an apocalyptic number.

16961689696 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16961689696 is an abundant number, since it is smaller than the sum of its proper divisors (21202112624).

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

16961689696 is an equidigital number, since it uses as much as digits as its factorization.

16961689696 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75721846 (or 75721838 counting only the distinct ones).

The product of its digits is 45349632, while the sum is 67.

The spelling of 16961689696 in words is "sixteen billion, nine hundred sixty-one million, six hundred eighty-nine thousand, six hundred ninety-six".