36166650223021 has 4 divisors (see below), whose sum is σ = 36166667582844. Its totient is φ = 36166632863200.

The previous prime is 36166650222991. The next prime is 36166650223061. The reversal of 36166650223021 is 12032205666163.

36166650223021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9368282385225 + 26798367837796 = 3060765^2 + 5176714^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-36166650223021 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 (36166650223061) 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 3 ways as a sum of consecutive naturals, for example, 5048440 + ... + 9890401.

It is an arithmetic number, because the mean of its divisors is an integer number (9041666895711).

Almost surely, 2^{36166650223021} is an apocalyptic number.

It is an amenable number.

36166650223021 is a deficient number, since it is larger than the sum of its proper divisors (17359823).

36166650223021 is a wasteful number, since it uses less digits than its factorization.

36166650223021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17359822.

The product of its (nonzero) digits is 466560, while the sum is 43.

Adding to 36166650223021 its reverse (12032205666163), we get a palindrome (48198855889184).

The spelling of 36166650223021 in words is "thirty-six trillion, one hundred sixty-six billion, six hundred fifty million, two hundred twenty-three thousand, twenty-one".