3552660221 has 8 divisors (see below), whose sum is σ = 4103607744. Its totient is φ = 3039709120.

The previous prime is 3552660203. The next prime is 3552660253. The reversal of 3552660221 is 1220662553.

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-3552660221 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 (3552660521) 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, 9498905 + ... + 9499278.

It is an arithmetic number, because the mean of its divisors is an integer number (512950968).

Almost surely, 2^3552660221 is an apocalyptic number.

It is an amenable number.

3552660221 is a deficient number, since it is larger than the sum of its proper divisors (550947523).

3552660221 is a wasteful number, since it uses less digits than its factorization.

3552660221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18998211.

The product of its (nonzero) digits is 21600, while the sum is 32.

The square root of 3552660221 is about 59604.1963371708. The cubic root of 3552660221 is about 1525.8712528948.

The spelling of 3552660221 in words is "three billion, five hundred fifty-two million, six hundred sixty thousand, two hundred twenty-one".