36445652725221 has 40 divisors (see below), whose sum is σ = 57646816128000. Its totient is φ = 22867562604672.

The previous prime is 36445652725219. The next prime is 36445652725249. The reversal of 36445652725221 is 12252725654463.

36445652725221 is a `hidden beast` number, since 3 + 6 + 4 + 4 + 565 + 2 + 7 + 2 + 52 + 21 = 666.

36445652725221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 36445652725221 - 2¹ = 36445652725219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (36445652725211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 158690530 + ... + 158920028.

It is an arithmetic number, because the mean of its divisors is an integer number (1441170403200).

Almost surely, 2^{36445652725221} is an apocalyptic number.

It is an amenable number.

36445652725221 is a deficient number, since it is larger than the sum of its proper divisors (21201163402779).

36445652725221 is a wasteful number, since it uses less digits than its factorization.

36445652725221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344855 (or 344846 counting only the distinct ones).

The product of its digits is 24192000, while the sum is 54.

The spelling of 36445652725221 in words is "thirty-six trillion, four hundred forty-five billion, six hundred fifty-two million, seven hundred twenty-five thousand, two hundred twenty-one".