16392362561 has 8 divisors (see below), whose sum is σ = 16980856200. Its totient is φ = 15812853760.

The previous prime is 16392362531. The next prime is 16392362563. The reversal of 16392362561 is 16526329361.

It can be written as a sum of positive squares in 4 ways, for example, as 1396890625 + 14995471936 = 37375^2 + 122456^2 .

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

It is not a de Polignac number, because 16392362561 - 2¹⁴ = 16392346177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16392362563) 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, 2242496 + ... + 2249793.

It is an arithmetic number, because the mean of its divisors is an integer number (2122607025).

Almost surely, 2^16392362561 is an apocalyptic number.

It is an amenable number.

16392362561 is a deficient number, since it is larger than the sum of its proper divisors (588493639).

16392362561 is an equidigital number, since it uses as much as digits as its factorization.

16392362561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4492419.

The product of its digits is 349920, while the sum is 44.

The spelling of 16392362561 in words is "sixteen billion, three hundred ninety-two million, three hundred sixty-two thousand, five hundred sixty-one".