3621996183636 has 144 divisors (see below), whose sum is σ = 9442663776000. Its totient is φ = 1170005846016.

The previous prime is 3621996183601. The next prime is 3621996183647. The reversal of 3621996183636 is 6363816991263.

3621996183636 is a `hidden beast` number, since 3 + 6 + 2 + 1 + 9 + 9 + 618 + 3 + 6 + 3 + 6 = 666.

3621996183636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 200555575 + ... + 200573633.

It is an arithmetic number, because the mean of its divisors is an integer number (65574054000).

Almost surely, 2^{3621996183636} is an apocalyptic number.

3621996183636 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3621996183636, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4721331888000).

3621996183636 is an abundant number, since it is smaller than the sum of its proper divisors (5820667592364).

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

3621996183636 is a wasteful number, since it uses less digits than its factorization.

3621996183636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19278 (or 19273 counting only the distinct ones).

The product of its digits is 45349632, while the sum is 63.

The spelling of 3621996183636 in words is "three trillion, six hundred twenty-one billion, nine hundred ninety-six million, one hundred eighty-three thousand, six hundred thirty-six".