32051685566 has 4 divisors (see below), whose sum is σ = 48077528352. Its totient is φ = 16025842782.

The previous prime is 32051685557. The next prime is 32051685619. The reversal of 32051685566 is 66558615023.

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

It is a self number, because there is not a number n which added to its sum of digits gives 32051685566.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8012921390 + ... + 8012921393.

It is an arithmetic number, because the mean of its divisors is an integer number (12019382088).

Almost surely, 2^32051685566 is an apocalyptic number.

32051685566 is a deficient number, since it is larger than the sum of its proper divisors (16025842786).

32051685566 is a wasteful number, since it uses less digits than its factorization.

32051685566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16025842785.

The product of its (nonzero) digits is 1296000, while the sum is 47.

The spelling of 32051685566 in words is "thirty-two billion, fifty-one million, six hundred eighty-five thousand, five hundred sixty-six".