5956663221 has 12 divisors (see below), whose sum is σ = 8605418848. Its totient is φ = 3970485864.

The previous prime is 5956663217. The next prime is 5956663243. The reversal of 5956663221 is 1223666595.

It is not a de Polignac number, because 5956663221 - 2² = 5956663217 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 (5956663291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12906 + ... + 109908.

Almost surely, 2^5956663221 is an apocalyptic number.

It is an amenable number.

5956663221 is a deficient number, since it is larger than the sum of its proper divisors (2648755627).

5956663221 is a wasteful number, since it uses less digits than its factorization.

5956663221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103832 (or 103829 counting only the distinct ones).

The product of its digits is 583200, while the sum is 45.

The square root of 5956663221 is about 77179.4222639688. The cubic root of 5956663221 is about 1812.7351199449.

The spelling of 5956663221 in words is "five billion, nine hundred fifty-six million, six hundred sixty-three thousand, two hundred twenty-one".