664024260659 has 8 divisors (see below), whose sum is σ = 705820253328. Its totient is φ = 622532239360.

The previous prime is 664024260623. The next prime is 664024260763. The reversal of 664024260659 is 956062420466.

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 664024260659 - 2²⁴ = 664007483443 is a prime.

It is a super-2 number, since 2×664024260659² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (664024260359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75988337 + ... + 75997074.

It is an arithmetic number, because the mean of its divisors is an integer number (88227531666).

Almost surely, 2^664024260659 is an apocalyptic number.

664024260659 is a deficient number, since it is larger than the sum of its proper divisors (41795992669).

664024260659 is a wasteful number, since it uses less digits than its factorization.

664024260659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151985685.

The product of its (nonzero) digits is 3732480, while the sum is 50.

The spelling of 664024260659 in words is "six hundred sixty-four billion, twenty-four million, two hundred sixty thousand, six hundred fifty-nine".