166302313 has 8 divisors (see below), whose sum is σ = 176263560. Its totient is φ = 156360960.

The previous prime is 166302271. The next prime is 166302341. The reversal of 166302313 is 313203661.

166302313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 12616704 + 153685609 = 3552^2 + 12397^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 166302313 - 2¹⁷ = 166171241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (166302373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14443 + ... + 23263.

It is an arithmetic number, because the mean of its divisors is an integer number (22032945).

Almost surely, 2^166302313 is an apocalyptic number.

It is an amenable number.

166302313 is a deficient number, since it is larger than the sum of its proper divisors (9961247).

166302313 is a wasteful number, since it uses less digits than its factorization.

166302313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9947.

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 166302313 is about 12895.8254097983. The cubic root of 166302313 is about 549.9198924651.

Adding to 166302313 its reverse (313203661), we get a palindrome (479505974).

The spelling of 166302313 in words is "one hundred sixty-six million, three hundred two thousand, three hundred thirteen".