36662244821 has 2 divisors, whose sum is σ = 36662244822. Its totient is φ = 36662244820.

The previous prime is 36662244769. The next prime is 36662244841. The reversal of 36662244821 is 12844226663.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 24644604196 + 12017640625 = 156986^2 + 109625^2 .

It is a cyclic number.

It is not a de Polignac number, because 36662244821 - 2⁶ = 36662244757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36662244841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18331122410 + 18331122411.

It is an arithmetic number, because the mean of its divisors is an integer number (18331122411).

Almost surely, 2^36662244821 is an apocalyptic number.

It is an amenable number.

36662244821 is a deficient number, since it is larger than the sum of its proper divisors (1).

36662244821 is an equidigital number, since it uses as much as digits as its factorization.

36662244821 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 663552, while the sum is 44.

The spelling of 36662244821 in words is "thirty-six billion, six hundred sixty-two million, two hundred forty-four thousand, eight hundred twenty-one".