223504064545 has 16 divisors (see below), whose sum is σ = 270708696720. Its totient is φ = 177134563584.

The previous prime is 223504064533. The next prime is 223504064617. The reversal of 223504064545 is 545460405322.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 27187722769 + 196316341776 = 164887^2 + 443076^2 .

It is a cyclic number.

It is not a de Polignac number, because 223504064545 - 2²⁵ = 223470510113 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 223504064498 and 223504064507.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3792847 + ... + 3851323.

It is an arithmetic number, because the mean of its divisors is an integer number (16919293545).

Almost surely, 2^223504064545 is an apocalyptic number.

It is an amenable number.

223504064545 is a deficient number, since it is larger than the sum of its proper divisors (47204632175).

223504064545 is a wasteful number, since it uses less digits than its factorization.

223504064545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65604.

The product of its (nonzero) digits is 576000, while the sum is 40.

Adding to 223504064545 its reverse (545460405322), we get a palindrome (768964469867).

The spelling of 223504064545 in words is "two hundred twenty-three billion, five hundred four million, sixty-four thousand, five hundred forty-five".