32201688685 has 4 divisors (see below), whose sum is σ = 38642026428. Its totient is φ = 25761350944.

The previous prime is 32201688671. The next prime is 32201688691. The reversal of 32201688685 is 58688610223.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6512651401 + 25689037284 = 80701^2 + 160278^2 .

It is a cyclic number.

It is not a de Polignac number, because 32201688685 - 2⁹ = 32201688173 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3220168864 + ... + 3220168873.

It is an arithmetic number, because the mean of its divisors is an integer number (9660506607).

Almost surely, 2^32201688685 is an apocalyptic number.

It is an amenable number.

32201688685 is a deficient number, since it is larger than the sum of its proper divisors (6440337743).

32201688685 is an equidigital number, since it uses as much as digits as its factorization.

32201688685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6440337742.

The product of its (nonzero) digits is 1105920, while the sum is 49.

The spelling of 32201688685 in words is "thirty-two billion, two hundred one million, six hundred eighty-eight thousand, six hundred eighty-five".