3668221552 has 20 divisors (see below), whose sum is σ = 7139056960. Its totient is φ = 1825884288.

The previous prime is 3668221517. The next prime is 3668221553. The reversal of 3668221552 is 2551228663.

It is a happy number.

3668221552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3668221553) 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, 510477 + ... + 517612.

It is an arithmetic number, because the mean of its divisors is an integer number (356952848).

Almost surely, 2^3668221552 is an apocalyptic number.

It is an amenable number.

3668221552 is a deficient number, since it is larger than the sum of its proper divisors (3470835408).

3668221552 is a wasteful number, since it uses less digits than its factorization.

3668221552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028320 (or 1028314 counting only the distinct ones).

The product of its digits is 172800, while the sum is 40.

The square root of 3668221552 is about 60565.8447641903. The cubic root of 3668221552 is about 1542.2396086403.

The spelling of 3668221552 in words is "three billion, six hundred sixty-eight million, two hundred twenty-one thousand, five hundred fifty-two".