664110407 has 2 divisors, whose sum is σ = 664110408. Its totient is φ = 664110406.

The previous prime is 664110371. The next prime is 664110467. The reversal of 664110407 is 704011466.

664110407 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 664110407 - 2²⁶ = 597001543 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 664110407.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (664110467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332055203 + 332055204.

It is an arithmetic number, because the mean of its divisors is an integer number (332055204).

Almost surely, 2^664110407 is an apocalyptic number.

664110407 is a deficient number, since it is larger than the sum of its proper divisors (1).

664110407 is an equidigital number, since it uses as much as digits as its factorization.

664110407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 664110407 is about 25770.3396756814. The cubic root of 664110407 is about 872.4624853398.

The spelling of 664110407 in words is "six hundred sixty-four million, one hundred ten thousand, four hundred seven".