36556133331 has 4 divisors (see below), whose sum is σ = 48741511112. Its totient is φ = 24370755552.

The previous prime is 36556133321. The next prime is 36556133333. The reversal of 36556133331 is 13333165563.

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

It is not a de Polignac number, because 36556133331 - 2²² = 36551939027 is a prime.

It is a super-2 number, since 2×36556133331² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 36556133331.

It is not an unprimeable number, because it can be changed into a prime (36556133333) 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 in 3 ways as a sum of consecutive naturals, for example, 6092688886 + ... + 6092688891.

It is an arithmetic number, because the mean of its divisors is an integer number (12185377778).

Almost surely, 2^36556133331 is an apocalyptic number.

36556133331 is a deficient number, since it is larger than the sum of its proper divisors (12185377781).

36556133331 is a wasteful number, since it uses less digits than its factorization.

36556133331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12185377780.

The product of its digits is 218700, while the sum is 39.

Adding to 36556133331 its reverse (13333165563), we get a palindrome (49889298894).

The spelling of 36556133331 in words is "thirty-six billion, five hundred fifty-six million, one hundred thirty-three thousand, three hundred thirty-one".