664162313 has 2 divisors, whose sum is σ = 664162314. Its totient is φ = 664162312.

The previous prime is 664162181. The next prime is 664162333. The reversal of 664162313 is 313261466.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 660130249 + 4032064 = 25693^2 + 2008^2 .

It is a cyclic number.

It is not a de Polignac number, because 664162313 - 2¹⁴ = 664145929 is a prime.

It is a super-2 number, since 2×664162313² = 882223156019019938, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 664162313.

It is not a weakly prime, because it can be changed into another prime (664162333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332081156 + 332081157.

It is an arithmetic number, because the mean of its divisors is an integer number (332081157).

Almost surely, 2^664162313 is an apocalyptic number.

It is an amenable number.

664162313 is a deficient number, since it is larger than the sum of its proper divisors (1).

664162313 is an equidigital number, since it uses as much as digits as its factorization.

664162313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 32.

The square root of 664162313 is about 25771.3467440101. The cubic root of 664162313 is about 872.4852149228.

The spelling of 664162313 in words is "six hundred sixty-four million, one hundred sixty-two thousand, three hundred thirteen".