223645744881936 has 80 divisors (see below), whose sum is σ = 691326590321920. Its totient is φ = 68814075346560.

The previous prime is 223645744881917. The next prime is 223645744881941. The reversal of 223645744881936 is 639188447546322.

223645744881936 is a `hidden beast` number, since 2 + 2 + 3 + 6 + 4 + 57 + 4 + 488 + 1 + 93 + 6 = 666.

It is a super-3 number, since 3×223645744881936³ (a number of 44 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19911474520 + ... + 19911485751.

It is an arithmetic number, because the mean of its divisors is an integer number (8641582379024).

Almost surely, 2^{223645744881936} is an apocalyptic number.

223645744881936 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

223645744881936 is an abundant number, since it is smaller than the sum of its proper divisors (467680845439984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223645744881936 is a wasteful number, since it uses less digits than its factorization.

223645744881936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39822960301 (or 39822960289 counting only the distinct ones).

The product of its digits is 1672151040, while the sum is 72.

The spelling of 223645744881936 in words is "two hundred twenty-three trillion, six hundred forty-five billion, seven hundred forty-four million, eight hundred eighty-one thousand, nine hundred thirty-six".