32636142221 has 8 divisors (see below), whose sum is σ = 33090609888. Its totient is φ = 32184250000.

The previous prime is 32636142181. The next prime is 32636142247. The reversal of 32636142221 is 12224163623.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32636142221 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 (32636142421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 618335 + ... + 669036.

It is an arithmetic number, because the mean of its divisors is an integer number (4136326236).

Almost surely, 2^32636142221 is an apocalyptic number.

It is an amenable number.

32636142221 is a deficient number, since it is larger than the sum of its proper divisors (454467667).

32636142221 is a wasteful number, since it uses less digits than its factorization.

32636142221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1287723.

The product of its digits is 20736, while the sum is 32.

The spelling of 32636142221 in words is "thirty-two billion, six hundred thirty-six million, one hundred forty-two thousand, two hundred twenty-one".