16723063265 has 4 divisors (see below), whose sum is σ = 20067675924. Its totient is φ = 13378450608.

The previous prime is 16723063241. The next prime is 16723063283. The reversal of 16723063265 is 56236032761.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56236032761 = 449 ⋅125247289.

It can be written as a sum of positive squares in 2 ways, for example, as 4033266064 + 12689797201 = 63508^2 + 112649^2 .

It is a cyclic number.

It is not a de Polignac number, because 16723063265 - 2²² = 16718868961 is a prime.

It is a Duffinian 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, 1672306322 + ... + 1672306331.

It is an arithmetic number, because the mean of its divisors is an integer number (5016918981).

Almost surely, 2^16723063265 is an apocalyptic number.

It is an amenable number.

16723063265 is a deficient number, since it is larger than the sum of its proper divisors (3344612659).

16723063265 is an equidigital number, since it uses as much as digits as its factorization.

16723063265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3344612658.

The product of its (nonzero) digits is 272160, while the sum is 41.

The spelling of 16723063265 in words is "sixteen billion, seven hundred twenty-three million, sixty-three thousand, two hundred sixty-five".