623556244223 has 16 divisors (see below), whose sum is σ = 693677986560. Its totient is φ = 555762849600.

The previous prime is 623556244153. The next prime is 623556244229. The reversal of 623556244223 is 322442655326.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 623556244223 - 2⁸ = 623556243967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623556244229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2090390 + ... + 2369987.

It is an arithmetic number, because the mean of its divisors is an integer number (43354874160).

Almost surely, 2^623556244223 is an apocalyptic number.

623556244223 is a deficient number, since it is larger than the sum of its proper divisors (70121742337).

623556244223 is a wasteful number, since it uses less digits than its factorization.

623556244223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4460638.

The product of its digits is 2073600, while the sum is 44.

Adding to 623556244223 its reverse (322442655326), we get a palindrome (945998899549).

The spelling of 623556244223 in words is "six hundred twenty-three billion, five hundred fifty-six million, two hundred forty-four thousand, two hundred twenty-three".