36665550561043 has 2 divisors, whose sum is σ = 36665550561044. Its totient is φ = 36665550561042.

The previous prime is 36665550561023. The next prime is 36665550561067. The reversal of 36665550561043 is 34016505556663.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 36665550561043 - 2¹⁷ = 36665550429971 is a prime.

It is not a weakly prime, because it can be changed into another prime (36665550561023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18332775280521 + 18332775280522.

It is an arithmetic number, because the mean of its divisors is an integer number (18332775280522).

Almost surely, 2^{36665550561043} is an apocalyptic number.

36665550561043 is a deficient number, since it is larger than the sum of its proper divisors (1).

36665550561043 is an equidigital number, since it uses as much as digits as its factorization.

36665550561043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29160000, while the sum is 55.

The spelling of 36665550561043 in words is "thirty-six trillion, six hundred sixty-five billion, five hundred fifty million, five hundred sixty-one thousand, forty-three".