32136164221 has 4 divisors (see below), whose sum is σ = 36727044832. Its totient is φ = 27545283612.

The previous prime is 32136164219. The next prime is 32136164227. The reversal of 32136164221 is 12246163123.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 32136164221 - 2¹ = 32136164219 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 (32136164227) 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, 2295440295 + ... + 2295440308.

It is an arithmetic number, because the mean of its divisors is an integer number (9181761208).

Almost surely, 2^32136164221 is an apocalyptic number.

It is an amenable number.

32136164221 is a deficient number, since it is larger than the sum of its proper divisors (4590880611).

32136164221 is an equidigital number, since it uses as much as digits as its factorization.

32136164221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4590880610.

The product of its digits is 10368, while the sum is 31.

The spelling of 32136164221 in words is "thirty-two billion, one hundred thirty-six million, one hundred sixty-four thousand, two hundred twenty-one".