664382843403 has 8 divisors (see below), whose sum is σ = 900365820816. Its totient is φ = 435660880800.

The previous prime is 664382843339. The next prime is 664382843417. The reversal of 664382843403 is 304348283466.

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

It is not a de Polignac number, because 664382843403 - 2⁶ = 664382843339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (664382843483) 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, 1815253488 + ... + 1815253853.

It is an arithmetic number, because the mean of its divisors is an integer number (112545727602).

Almost surely, 2^664382843403 is an apocalyptic number.

664382843403 is a deficient number, since it is larger than the sum of its proper divisors (235982977413).

664382843403 is a wasteful number, since it uses less digits than its factorization.

664382843403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3630507405.

The product of its (nonzero) digits is 7962624, while the sum is 51.

The spelling of 664382843403 in words is "six hundred sixty-four billion, three hundred eighty-two million, eight hundred forty-three thousand, four hundred three".