163307316769 has 3 divisors (see below), whose sum is σ = 163307720883. Its totient is φ = 163306912656.

The previous prime is 163307316749. The next prime is 163307316797. The reversal of 163307316769 is 967613703361.

The square root of 163307316769 is 404113.

It is a perfect power (a square), and thus also a powerful number.

163307316769 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 20205025 + 163287111744 = 4495^2 + 404088^2 .

It is a de Polignac number, because none of the positive numbers 2^k-163307316769 is a prime.

It is a super-2 number, since 2×163307316769² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163307316749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 202057 + ... + 606169.

It is an arithmetic number, because the mean of its divisors is an integer number (54435906961).

Almost surely, 2^163307316769 is an apocalyptic number.

163307316769 is the 404113-rd square number.

163307316769 is the 202057-th centered octagonal number.

It is an amenable number.

163307316769 is a deficient number, since it is larger than the sum of its proper divisors (404114).

163307316769 is an frugal number, since it uses more digits than its factorization.

163307316769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808226 (or 404113 counting only the distinct ones).

The product of its (nonzero) digits is 2571912, while the sum is 52.

The spelling of 163307316769 in words is "one hundred sixty-three billion, three hundred seven million, three hundred sixteen thousand, seven hundred sixty-nine".