664325049 has 8 divisors (see below), whose sum is σ = 886287712. Its totient is φ = 442622880.

The previous prime is 664325041. The next prime is 664325059. The reversal of 664325049 is 940523466.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 664325049 - 2³ = 664325041 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 664324998 and 664325016.

It is not an unprimeable number, because it can be changed into a prime (664325041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59092 + ... + 69429.

It is an arithmetic number, because the mean of its divisors is an integer number (110785964).

Almost surely, 2^664325049 is an apocalyptic number.

It is an amenable number.

664325049 is a deficient number, since it is larger than the sum of its proper divisors (221962663).

664325049 is a wasteful number, since it uses less digits than its factorization.

664325049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130247.

The product of its (nonzero) digits is 155520, while the sum is 39.

The square root of 664325049 is about 25774.5038555546. The cubic root of 664325049 is about 872.5564691711.

The spelling of 664325049 in words is "six hundred sixty-four million, three hundred twenty-five thousand, forty-nine".