664037063 has 2 divisors, whose sum is σ = 664037064. Its totient is φ = 664037062.

The previous prime is 664037029. The next prime is 664037069. The reversal of 664037063 is 360730466.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 664037063 - 2⁶ = 664036999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (664037069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 332018531 + 332018532.

It is an arithmetic number, because the mean of its divisors is an integer number (332018532).

Almost surely, 2^664037063 is an apocalyptic number.

664037063 is a deficient number, since it is larger than the sum of its proper divisors (1).

664037063 is an equidigital number, since it uses as much as digits as its factorization.

664037063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 54432, while the sum is 35.

The square root of 664037063 is about 25768.9166050884. The cubic root of 664037063 is about 872.4303660598.

The spelling of 664037063 in words is "six hundred sixty-four million, thirty-seven thousand, sixty-three".