32664644646623 has 16 divisors (see below), whose sum is σ = 35650791792000. Its totient is φ = 29681272975200.

The previous prime is 32664644646607. The next prime is 32664644646631.

32664644646623 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 32664644646623 - 2⁴ = 32664644646607 is a prime.

It is a super-2 number, since 2×32664644646623² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32664644646653) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220891436 + ... + 221039262.

It is an arithmetic number, because the mean of its divisors is an integer number (2228174487000).

Almost surely, 2^{32664644646623} is an apocalyptic number.

32664644646623 is a deficient number, since it is larger than the sum of its proper divisors (2986147145377).

32664644646623 is a wasteful number, since it uses less digits than its factorization.

32664644646623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157078.

The product of its digits is 429981696, while the sum is 62.

The spelling of 32664644646623 in words is "thirty-two trillion, six hundred sixty-four billion, six hundred forty-four million, six hundred forty-six thousand, six hundred twenty-three".