223640858185 has 16 divisors (see below), whose sum is σ = 269547469632. Its totient is φ = 178127640000.

The previous prime is 223640858123. The next prime is 223640858209. The reversal of 223640858185 is 581858046322.

It is not a de Polignac number, because 223640858185 - 2⁷ = 223640858057 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3174190 + ... + 3243880.

It is an arithmetic number, because the mean of its divisors is an integer number (16846716852).

Almost surely, 2^223640858185 is an apocalyptic number.

It is an amenable number.

223640858185 is a deficient number, since it is larger than the sum of its proper divisors (45906611447).

223640858185 is a wasteful number, since it uses less digits than its factorization.

223640858185 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72504.

The product of its (nonzero) digits is 3686400, while the sum is 52.

The spelling of 223640858185 in words is "two hundred twenty-three billion, six hundred forty million, eight hundred fifty-eight thousand, one hundred eighty-five".