36567553266781 has 2 divisors, whose sum is σ = 36567553266782. Its totient is φ = 36567553266780.

The previous prime is 36567553266779. The next prime is 36567553266791. The reversal of 36567553266781 is 18766235576563.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35791143804900 + 776409461881 = 5982570^2 + 881141^2 .

It is a cyclic number.

It is not a de Polignac number, because 36567553266781 - 2¹ = 36567553266779 is a prime.

It is a super-2 number, since 2×36567553266781² (a number of 28 digits) contains 22 as substring.

Together with 36567553266779, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 36567553266781.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36567553266791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18283776633390 + 18283776633391.

It is an arithmetic number, because the mean of its divisors is an integer number (18283776633391).

Almost surely, 2^{36567553266781} is an apocalyptic number.

It is an amenable number.

36567553266781 is a deficient number, since it is larger than the sum of its proper divisors (1).

36567553266781 is an equidigital number, since it uses as much as digits as its factorization.

36567553266781 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1143072000, while the sum is 70.

The spelling of 36567553266781 in words is "thirty-six trillion, five hundred sixty-seven billion, five hundred fifty-three million, two hundred sixty-six thousand, seven hundred eighty-one".