3668221348836 has 144 divisors (see below), whose sum is σ = 9894383665152. Its totient is φ = 1054879277760.

The previous prime is 3668221348811. The next prime is 3668221348873. The reversal of 3668221348836 is 6388431228663.

3668221348836 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×3668221348836³ (a number of 39 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 3668221348836.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3808851 + ... + 4673733.

Almost surely, 2^{3668221348836} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3668221348836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4947191832576).

3668221348836 is an abundant number, since it is smaller than the sum of its proper divisors (6226162316316).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3668221348836 is a wasteful number, since it uses less digits than its factorization.

3668221348836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865062 (or 865049 counting only the distinct ones).

The product of its digits is 47775744, while the sum is 60.

The spelling of 3668221348836 in words is "three trillion, six hundred sixty-eight billion, two hundred twenty-one million, three hundred forty-eight thousand, eight hundred thirty-six".