220124666 has 8 divisors (see below), whose sum is σ = 330272544. Its totient is φ = 110033820.

The previous prime is 220124659. The next prime is 220124669. The reversal of 220124666 is 666421022.

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

It is a super-2 number, since 2×220124666² = 96909737163223112, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (220124669) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2750 + ... + 21161.

It is an arithmetic number, because the mean of its divisors is an integer number (41284068).

Almost surely, 2^220124666 is an apocalyptic number.

220124666 is a deficient number, since it is larger than the sum of its proper divisors (110147878).

220124666 is a wasteful number, since it uses less digits than its factorization.

220124666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28516.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 220124666 is about 14836.5988690131. The cubic root of 220124666 is about 603.7950801855.

Adding to 220124666 its reverse (666421022), we get a palindrome (886545688).

The spelling of 220124666 in words is "two hundred twenty million, one hundred twenty-four thousand, six hundred sixty-six".