16310670665 has 4 divisors (see below), whose sum is σ = 19572804804. Its totient is φ = 13048536528.

The previous prime is 16310670653. The next prime is 16310670667. The reversal of 16310670665 is 56607601361.

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 12764706361 + 3545964304 = 112981^2 + 59548^2 .

It is a cyclic number.

It is not a de Polignac number, because 16310670665 - 2⁶ = 16310670601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16310670667) 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, 1631067062 + ... + 1631067071.

It is an arithmetic number, because the mean of its divisors is an integer number (4893201201).

Almost surely, 2^16310670665 is an apocalyptic number.

It is an amenable number.

16310670665 is a deficient number, since it is larger than the sum of its proper divisors (3262134139).

16310670665 is an equidigital number, since it uses as much as digits as its factorization.

16310670665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3262134138.

The product of its (nonzero) digits is 136080, while the sum is 41.

The spelling of 16310670665 in words is "sixteen billion, three hundred ten million, six hundred seventy thousand, six hundred sixty-five".