664464472001733 has 32 divisors (see below), whose sum is σ = 965310913671552. Its totient is φ = 404112552480000.

The previous prime is 664464472001677. The next prime is 664464472001741. The reversal of 664464472001733 is 337100274464466.

It is a happy number.

It is not a de Polignac number, because 664464472001733 - 2⁶ = 664464472001669 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (664464472001753) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 152039718 + ... + 156348983.

It is an arithmetic number, because the mean of its divisors is an integer number (30165966052236).

Almost surely, 2^{664464472001733} is an apocalyptic number.

It is an amenable number.

664464472001733 is a deficient number, since it is larger than the sum of its proper divisors (300846441669819).

664464472001733 is a wasteful number, since it uses less digits than its factorization.

664464472001733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308389365.

The product of its (nonzero) digits is 48771072, while the sum is 57.

The spelling of 664464472001733 in words is "six hundred sixty-four trillion, four hundred sixty-four billion, four hundred seventy-two million, one thousand, seven hundred thirty-three".