2236681336667 has 4 divisors (see below), whose sum is σ = 2257201349040. Its totient is φ = 2216161324296.

The previous prime is 2236681336621. The next prime is 2236681336759. The reversal of 2236681336667 is 7666331866322.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2236681336667 - 2⁸ = 2236681336411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2236681336867) 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 in 3 ways as a sum of consecutive naturals, for example, 10260006023 + ... + 10260006240.

It is an arithmetic number, because the mean of its divisors is an integer number (564300337260).

Almost surely, 2^{2236681336667} is an apocalyptic number.

2236681336667 is a deficient number, since it is larger than the sum of its proper divisors (20520012373).

2236681336667 is a wasteful number, since it uses less digits than its factorization.

2236681336667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20520012372.

The product of its digits is 47029248, while the sum is 59.

The spelling of 2236681336667 in words is "two trillion, two hundred thirty-six billion, six hundred eighty-one million, three hundred thirty-six thousand, six hundred sixty-seven".