223154455543 has 32 divisors (see below), whose sum is σ = 247540138560. Its totient is φ = 200302018560.

The previous prime is 223154455523. The next prime is 223154455549. The reversal of 223154455543 is 345554451322.

It is a de Polignac number, because none of the positive numbers 2^k-223154455543 is a prime.

It is a super-3 number, since 3×223154455543³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 223154455543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223154455549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6090703 + ... + 6127231.

It is an arithmetic number, because the mean of its divisors is an integer number (7735629330).

Almost surely, 2^223154455543 is an apocalyptic number.

223154455543 is a deficient number, since it is larger than the sum of its proper divisors (24385683017).

223154455543 is a wasteful number, since it uses less digits than its factorization.

223154455543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36787.

The product of its digits is 1440000, while the sum is 43.

The spelling of 223154455543 in words is "two hundred twenty-three billion, one hundred fifty-four million, four hundred fifty-five thousand, five hundred forty-three".