6432607132221 has 8 divisors (see below), whose sum is σ = 8576999103744. Its totient is φ = 4288309957760.

The previous prime is 6432607132207. The next prime is 6432607132319. The reversal of 6432607132221 is 1222317062346.

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-6432607132221 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6432607132221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6432607132201) 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, 23540781 + ... + 23812466.

It is an arithmetic number, because the mean of its divisors is an integer number (1072124887968).

Almost surely, 2^{6432607132221} is an apocalyptic number.

It is an amenable number.

6432607132221 is a deficient number, since it is larger than the sum of its proper divisors (2144391971523).

6432607132221 is a wasteful number, since it uses less digits than its factorization.

6432607132221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47398531.

The product of its (nonzero) digits is 145152, while the sum is 39.

The spelling of 6432607132221 in words is "six trillion, four hundred thirty-two billion, six hundred seven million, one hundred thirty-two thousand, two hundred twenty-one".