223020067509 has 24 divisors (see below), whose sum is σ = 323199965504. Its totient is φ = 148191120000.

The previous prime is 223020067451. The next prime is 223020067513. The reversal of 223020067509 is 905760020322.

223020067509 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 223020067509 - 2²⁹ = 222483196597 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 (223020067549) 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 23 ways as a sum of consecutive naturals, for example, 14741469 + ... + 14756589.

Almost surely, 2^223020067509 is an apocalyptic number.

It is an amenable number.

223020067509 is a deficient number, since it is larger than the sum of its proper divisors (100179897995).

223020067509 is a wasteful number, since it uses less digits than its factorization.

223020067509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20409 (or 20406 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The spelling of 223020067509 in words is "two hundred twenty-three billion, twenty million, sixty-seven thousand, five hundred nine".