664495054023 has 8 divisors (see below), whose sum is σ = 892367459200. Its totient is φ = 439809675768.

The previous prime is 664495053983. The next prime is 664495054063. The reversal of 664495054023 is 320450594466.

It is an interprime number because it is at equal distance from previous prime (664495053983) and next prime (664495054063).

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

It is not a de Polignac number, because 664495054023 - 2³⁰ = 663421312199 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 (664495054063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 796756243 + ... + 796757076.

It is an arithmetic number, because the mean of its divisors is an integer number (111545932400).

Almost surely, 2^664495054023 is an apocalyptic number.

664495054023 is a deficient number, since it is larger than the sum of its proper divisors (227872405177).

664495054023 is a wasteful number, since it uses less digits than its factorization.

664495054023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593513461.

The product of its (nonzero) digits is 3110400, while the sum is 48.

The spelling of 664495054023 in words is "six hundred sixty-four billion, four hundred ninety-five million, fifty-four thousand, twenty-three".