224545666 has 16 divisors (see below), whose sum is σ = 349019640. Its totient is φ = 108218880.

The previous prime is 224545621. The next prime is 224545669. The reversal of 224545666 is 666545422.

It can be written as a sum of positive squares in 4 ways, for example, as 223951225 + 594441 = 14965^2 + 771^2 .

It is a super-2 number, since 2×224545666² = 100841512238767112, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (224545669) 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, 35410 + ... + 41266.

Almost surely, 2^224545666 is an apocalyptic number.

224545666 is a deficient number, since it is larger than the sum of its proper divisors (124473974).

224545666 is a wasteful number, since it uses less digits than its factorization.

224545666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6549.

The product of its digits is 345600, while the sum is 40.

The square root of 224545666 is about 14984.8478804424. The cubic root of 224545666 is about 607.8105383384.

The spelling of 224545666 in words is "two hundred twenty-four million, five hundred forty-five thousand, six hundred sixty-six".