664152263 has 2 divisors, whose sum is σ = 664152264. Its totient is φ = 664152262.

The previous prime is 664152259. The next prime is 664152341. The reversal of 664152263 is 362251466.

It is a happy number.

664152263 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 664152263 - 2² = 664152259 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (664151263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332076131 + 332076132.

It is an arithmetic number, because the mean of its divisors is an integer number (332076132).

Almost surely, 2^664152263 is an apocalyptic number.

664152263 is a deficient number, since it is larger than the sum of its proper divisors (1).

664152263 is an equidigital number, since it uses as much as digits as its factorization.

664152263 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 51840, while the sum is 35.

The square root of 664152263 is about 25771.1517592831. The cubic root of 664152263 is about 872.4808141308.

The spelling of 664152263 in words is "six hundred sixty-four million, one hundred fifty-two thousand, two hundred sixty-three".