223561466 has 4 divisors (see below), whose sum is σ = 335342202. Its totient is φ = 111780732.

The previous prime is 223561451. The next prime is 223561477. The reversal of 223561466 is 664165322.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 664165322 = 2 ⋅332082661.

It can be written as a sum of positive squares in only one way, i.e., 215238241 + 8323225 = 14671^2 + 2885^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55890365 + ... + 55890368.

Almost surely, 2^223561466 is an apocalyptic number.

223561466 is a deficient number, since it is larger than the sum of its proper divisors (111780736).

223561466 is a wasteful number, since it uses less digits than its factorization.

223561466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111780735.

The product of its digits is 51840, while the sum is 35.

The square root of 223561466 is about 14951.9719769668. The cubic root of 223561466 is about 606.9212117973.

The spelling of 223561466 in words is "two hundred twenty-three million, five hundred sixty-one thousand, four hundred sixty-six".