223865637201 has 12 divisors (see below), whose sum is σ = 323746899840. Its totient is φ = 149065870200.

The previous prime is 223865637169. The next prime is 223865637217. The reversal of 223865637201 is 102736568322.

223865637201 is a `hidden beast` number, since 2 + 2 + 3 + 8 + 6 + 5 + 637 + 2 + 0 + 1 = 666.

223865637201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 223865637201 - 2⁵ = 223865637169 is a prime.

It is a super-2 number, since 2×223865637201² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (223865637001) 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 11 ways as a sum of consecutive naturals, for example, 14816025 + ... + 14831126.

It is an arithmetic number, because the mean of its divisors is an integer number (26978908320).

Almost surely, 2^223865637201 is an apocalyptic number.

It is an amenable number.

223865637201 is a deficient number, since it is larger than the sum of its proper divisors (99881262639).

223865637201 is a wasteful number, since it uses less digits than its factorization.

223865637201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29647996 (or 29647993 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 223865637201 in words is "two hundred twenty-three billion, eight hundred sixty-five million, six hundred thirty-seven thousand, two hundred one".