16393052765 has 4 divisors (see below), whose sum is σ = 19671663324. Its totient is φ = 13114442208.

The previous prime is 16393052759. The next prime is 16393052783. The reversal of 16393052765 is 56725039361.

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 8429810596 + 7963242169 = 91814^2 + 89237^2 .

It is a cyclic number.

It is not a de Polignac number, because 16393052765 - 2⁶ = 16393052701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1639305272 + ... + 1639305281.

It is an arithmetic number, because the mean of its divisors is an integer number (4917915831).

Almost surely, 2^16393052765 is an apocalyptic number.

It is an amenable number.

16393052765 is a deficient number, since it is larger than the sum of its proper divisors (3278610559).

16393052765 is an equidigital number, since it uses as much as digits as its factorization.

16393052765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3278610558.

The product of its (nonzero) digits is 1020600, while the sum is 47.

The spelling of 16393052765 in words is "sixteen billion, three hundred ninety-three million, fifty-two thousand, seven hundred sixty-five".