223602621623 has 4 divisors (see below), whose sum is σ = 226115010720. Its totient is φ = 221090232528.

The previous prime is 223602621569. The next prime is 223602621653. The reversal of 223602621623 is 326126206322.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 223602621623 - 2¹⁰ = 223602620599 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 (223602621653) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1256194415 + ... + 1256194592.

It is an arithmetic number, because the mean of its divisors is an integer number (56528752680).

Almost surely, 2^223602621623 is an apocalyptic number.

223602621623 is a deficient number, since it is larger than the sum of its proper divisors (2512389097).

223602621623 is an equidigital number, since it uses as much as digits as its factorization.

223602621623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2512389096.

The product of its (nonzero) digits is 62208, while the sum is 35.

Adding to 223602621623 its reverse (326126206322), we get a palindrome (549728827945).

The spelling of 223602621623 in words is "two hundred twenty-three billion, six hundred two million, six hundred twenty-one thousand, six hundred twenty-three".