13992168961 has 4 divisors (see below), whose sum is σ = 13998471124. Its totient is φ = 13985866800.

The previous prime is 13992168947. The next prime is 13992169001. The reversal of 13992168961 is 16986129931.

13992168961 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7596168336 + 6396000625 = 87156^2 + 79975^2 .

It is a cyclic number.

It is not a de Polignac number, because 13992168961 - 2⁵ = 13992168929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13992168941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3147750 + ... + 3152191.

It is an arithmetic number, because the mean of its divisors is an integer number (3499617781).

Almost surely, 2^13992168961 is an apocalyptic number.

It is an amenable number.

13992168961 is a deficient number, since it is larger than the sum of its proper divisors (6302163).

13992168961 is an equidigital number, since it uses as much as digits as its factorization.

13992168961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6302162.

The product of its digits is 1259712, while the sum is 55.

The spelling of 13992168961 in words is "thirteen billion, nine hundred ninety-two million, one hundred sixty-eight thousand, nine hundred sixty-one".