32105664031543 has 4 divisors (see below), whose sum is σ = 32340011944320. Its totient is φ = 31871316118768.

The previous prime is 32105664031517. The next prime is 32105664031619. The reversal of 32105664031543 is 34513046650123.

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 32105664031543 - 2²¹ = 32105661934391 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 32105664031543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32105664031043) 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, 117173956183 + ... + 117173956456.

It is an arithmetic number, because the mean of its divisors is an integer number (8085002986080).

Almost surely, 2^{32105664031543} is an apocalyptic number.

32105664031543 is a deficient number, since it is larger than the sum of its proper divisors (234347912777).

32105664031543 is a wasteful number, since it uses less digits than its factorization.

32105664031543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234347912776.

The product of its (nonzero) digits is 777600, while the sum is 43.

The spelling of 32105664031543 in words is "thirty-two trillion, one hundred five billion, six hundred sixty-four million, thirty-one thousand, five hundred forty-three".