16766268313 has 4 divisors (see below), whose sum is σ = 16811218468. Its totient is φ = 16721318160.

The previous prime is 16766268283. The next prime is 16766268329. The reversal of 16766268313 is 31386266761.

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 2852414464 + 13913853849 = 53408^2 + 117957^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16766268313 is a prime.

It is a super-2 number, since 2×16766268313² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16766268353) 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, 22474518 + ... + 22475263.

It is an arithmetic number, because the mean of its divisors is an integer number (4202804617).

Almost surely, 2^16766268313 is an apocalyptic number.

It is an amenable number.

16766268313 is a deficient number, since it is larger than the sum of its proper divisors (44950155).

16766268313 is an equidigital number, since it uses as much as digits as its factorization.

16766268313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44950154.

The product of its digits is 1306368, while the sum is 49.

The spelling of 16766268313 in words is "sixteen billion, seven hundred sixty-six million, two hundred sixty-eight thousand, three hundred thirteen".