222778564943 has 8 divisors (see below), whose sum is σ = 243034698240. Its totient is φ = 202523021080.

The previous prime is 222778564909. The next prime is 222778564963. The reversal of 222778564943 is 349465877222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 222778564943 - 2¹⁶ = 222778499407 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 (222778564963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1107746 + ... + 1293312.

It is an arithmetic number, because the mean of its divisors is an integer number (30379337280).

Almost surely, 2^222778564943 is an apocalyptic number.

222778564943 is a deficient number, since it is larger than the sum of its proper divisors (20256133297).

222778564943 is a wasteful number, since it uses less digits than its factorization.

222778564943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294717.

The product of its digits is 40642560, while the sum is 59.

The spelling of 222778564943 in words is "two hundred twenty-two billion, seven hundred seventy-eight million, five hundred sixty-four thousand, nine hundred forty-three".