32666144166623 has 4 divisors (see below), whose sum is σ = 35635793636328. Its totient is φ = 29696494696920.

The previous prime is 32666144166619. The next prime is 32666144166653.

32666144166623 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 32666144166623 - 2² = 32666144166619 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 (32666144166613) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1484824734836 + ... + 1484824734857.

It is an arithmetic number, because the mean of its divisors is an integer number (8908948409082).

Almost surely, 2^{32666144166623} is an apocalyptic number.

32666144166623 is a deficient number, since it is larger than the sum of its proper divisors (2969649469705).

32666144166623 is a wasteful number, since it uses less digits than its factorization.

32666144166623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2969649469704.

The product of its digits is 26873856, while the sum is 56.

The spelling of 32666144166623 in words is "thirty-two trillion, six hundred sixty-six billion, one hundred forty-four million, one hundred sixty-six thousand, six hundred twenty-three".