36663172643233 has 4 divisors (see below), whose sum is σ = 36680773784368. Its totient is φ = 36645571502100.

The previous prime is 36663172643191. The next prime is 36663172643249. The reversal of 36663172643233 is 33234627136663.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 36663172643233 - 2²¹ = 36663170546081 is a prime.

It is a super-3 number, since 3×36663172643233³ (a number of 42 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (36663172643333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8800567443 + ... + 8800571608.

It is an arithmetic number, because the mean of its divisors is an integer number (9170193446092).

Almost surely, 2^{36663172643233} is an apocalyptic number.

It is an amenable number.

36663172643233 is a deficient number, since it is larger than the sum of its proper divisors (17601141135).

36663172643233 is a wasteful number, since it uses less digits than its factorization.

36663172643233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17601141134.

The product of its digits is 35271936, while the sum is 55.

Adding to 36663172643233 its reverse (33234627136663), we get a palindrome (69897799779896).

The spelling of 36663172643233 in words is "thirty-six trillion, six hundred sixty-three billion, one hundred seventy-two million, six hundred forty-three thousand, two hundred thirty-three".