223521466653 has 8 divisors (see below), whose sum is σ = 331142913600. Its totient is φ = 149014311084.

The previous prime is 223521466633. The next prime is 223521466667. The reversal of 223521466653 is 356664125322.

223521466653 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 223521466653 - 2⁶ = 223521466589 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 223521466599 and 223521466608.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223521466633) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 4139286393 + ... + 4139286446.

It is an arithmetic number, because the mean of its divisors is an integer number (41392864200).

Almost surely, 2^223521466653 is an apocalyptic number.

It is an amenable number.

223521466653 is a deficient number, since it is larger than the sum of its proper divisors (107621446947).

223521466653 is an equidigital number, since it uses as much as digits as its factorization.

223521466653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8278572848 (or 8278572842 counting only the distinct ones).

The product of its digits is 1555200, while the sum is 45.

The spelling of 223521466653 in words is "two hundred twenty-three billion, five hundred twenty-one million, four hundred sixty-six thousand, six hundred fifty-three".