223615304661009 has 4 divisors (see below), whose sum is σ = 298153739548016. Its totient is φ = 149076869774004.

The previous prime is 223615304660989. The next prime is 223615304661061. The reversal of 223615304661009 is 900166403516322.

223615304661009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 223615304661009 - 2⁵ = 223615304660977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223615304611009) 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, 37269217443499 + ... + 37269217443504.

It is an arithmetic number, because the mean of its divisors is an integer number (74538434887004).

Almost surely, 2^{223615304661009} is an apocalyptic number.

It is an amenable number.

223615304661009 is a deficient number, since it is larger than the sum of its proper divisors (74538434887007).

223615304661009 is an equidigital number, since it uses as much as digits as its factorization.

223615304661009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74538434887006.

The product of its (nonzero) digits is 1399680, while the sum is 48.

The spelling of 223615304661009 in words is "two hundred twenty-three trillion, six hundred fifteen billion, three hundred four million, six hundred sixty-one thousand, nine".