223556391117 has 12 divisors (see below), whose sum is σ = 334049780220. Its totient is φ = 143898366528.

The previous prime is 223556391103. The next prime is 223556391127. The reversal of 223556391117 is 711193655322.

223556391117 is a `hidden beast` number, since 2 + 2 + 3 + 5 + 5 + 639 + 1 + 1 + 1 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 189624540681 + 33931850436 = 435459^2 + 184206^2 .

It is not a de Polignac number, because 223556391117 - 2⁴ = 223556391101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223556391127) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 428268688 + ... + 428269209.

It is an arithmetic number, because the mean of its divisors is an integer number (27837481685).

Almost surely, 2^223556391117 is an apocalyptic number.

It is an amenable number.

223556391117 is a deficient number, since it is larger than the sum of its proper divisors (110493389103).

223556391117 is a wasteful number, since it uses less digits than its factorization.

223556391117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856537932 (or 856537929 counting only the distinct ones).

The product of its digits is 340200, while the sum is 45.

The spelling of 223556391117 in words is "two hundred twenty-three billion, five hundred fifty-six million, three hundred ninety-one thousand, one hundred seventeen".