223899128564505 has 16 divisors (see below), whose sum is σ = 361408858853760. Its totient is φ = 118356117517568.

The previous prime is 223899128564467. The next prime is 223899128564521. The reversal of 223899128564505 is 505465821998322.

It is a cyclic number.

It is not a de Polignac number, because 223899128564505 - 2⁹ = 223899128563993 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 223899128564505.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 66046938885 + ... + 66046942274.

It is an arithmetic number, because the mean of its divisors is an integer number (22588053678360).

Almost surely, 2^{223899128564505} is an apocalyptic number.

It is an amenable number.

223899128564505 is a deficient number, since it is larger than the sum of its proper divisors (137509730289255).

223899128564505 is a wasteful number, since it uses less digits than its factorization.

223899128564505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132093881280.

The product of its (nonzero) digits is 373248000, while the sum is 69.

The spelling of 223899128564505 in words is "two hundred twenty-three trillion, eight hundred ninety-nine billion, one hundred twenty-eight million, five hundred sixty-four thousand, five hundred five".