223920199905 has 32 divisors (see below), whose sum is σ = 391584181248. Its totient is φ = 108773376000.

The previous prime is 223920199891. The next prime is 223920199913. The reversal of 223920199905 is 509991029322.

It is not a de Polignac number, because 223920199905 - 2⁵ = 223920199873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 14155296 + ... + 14171105.

It is an arithmetic number, because the mean of its divisors is an integer number (12237005664).

Almost surely, 2^223920199905 is an apocalyptic number.

It is an amenable number.

223920199905 is a deficient number, since it is larger than the sum of its proper divisors (167663981343).

223920199905 is a wasteful number, since it uses less digits than its factorization.

223920199905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28326457.

The product of its (nonzero) digits is 787320, while the sum is 51.

The spelling of 223920199905 in words is "two hundred twenty-three billion, nine hundred twenty million, one hundred ninety-nine thousand, nine hundred five".