664684263033 has 8 divisors (see below), whose sum is σ = 1012852210368. Its totient is φ = 379819578864.

The previous prime is 664684263011. The next prime is 664684263059. The reversal of 664684263033 is 330362486466.

664684263033 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 664684263033 - 2¹⁸ = 664684000889 is a prime.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (664684264033) 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, 15825815766 + ... + 15825815807.

It is an arithmetic number, because the mean of its divisors is an integer number (126606526296).

Almost surely, 2^664684263033 is an apocalyptic number.

It is an amenable number.

664684263033 is a deficient number, since it is larger than the sum of its proper divisors (348167947335).

664684263033 is a wasteful number, since it uses less digits than its factorization.

664684263033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31651631583.

The product of its (nonzero) digits is 8957952, while the sum is 51.

The spelling of 664684263033 in words is "six hundred sixty-four billion, six hundred eighty-four million, two hundred sixty-three thousand, thirty-three".