223440011764405 has 4 divisors (see below), whose sum is σ = 268128014117292. Its totient is φ = 178752009411520.

The previous prime is 223440011764381. The next prime is 223440011764423. The reversal of 223440011764405 is 504467110044322.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 73236505655889 + 150203506108516 = 8557833^2 + 12255754^2 .

It is a de Polignac number, because none of the positive numbers 2^k-223440011764405 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22344001176436 + ... + 22344001176445.

It is an arithmetic number, because the mean of its divisors is an integer number (67032003529323).

Almost surely, 2^{223440011764405} is an apocalyptic number.

It is an amenable number.

223440011764405 is a deficient number, since it is larger than the sum of its proper divisors (44688002352887).

223440011764405 is an equidigital number, since it uses as much as digits as its factorization.

223440011764405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44688002352886.

The product of its (nonzero) digits is 645120, while the sum is 43.

The spelling of 223440011764405 in words is "two hundred twenty-three trillion, four hundred forty billion, eleven million, seven hundred sixty-four thousand, four hundred five".