664530947413 has 8 divisors (see below), whose sum is σ = 671769408128. Its totient is φ = 657307615824.

The previous prime is 664530947389. The next prime is 664530947441. The reversal of 664530947413 is 314749035466.

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 664530947413 - 2⁹ = 664530946901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664530947713) 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, 3693945 + ... + 3869662.

It is an arithmetic number, because the mean of its divisors is an integer number (83971176016).

Almost surely, 2^664530947413 is an apocalyptic number.

It is an amenable number.

664530947413 is a deficient number, since it is larger than the sum of its proper divisors (7238460715).

664530947413 is a wasteful number, since it uses less digits than its factorization.

664530947413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7564563.

The product of its (nonzero) digits is 6531840, while the sum is 52.

The spelling of 664530947413 in words is "six hundred sixty-four billion, five hundred thirty million, nine hundred forty-seven thousand, four hundred thirteen".