220866969 has 8 divisors (see below), whose sum is σ = 296608480. Its totient is φ = 146185056.

The previous prime is 220866967. The next prime is 220866973. The reversal of 220866969 is 969668022.

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

It is not a de Polignac number, because 220866969 - 2¹ = 220866967 is a prime.

It is a super-2 number, since 2×220866969² = 97564435990493922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220866967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264412 + ... + 265245.

It is an arithmetic number, because the mean of its divisors is an integer number (37076060).

Almost surely, 2^220866969 is an apocalyptic number.

It is an amenable number.

220866969 is a deficient number, since it is larger than the sum of its proper divisors (75741511).

220866969 is a wasteful number, since it uses less digits than its factorization.

220866969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529799.

The product of its (nonzero) digits is 559872, while the sum is 48.

The square root of 220866969 is about 14861.5937570639. The cubic root of 220866969 is about 604.4730233480.

The spelling of 220866969 in words is "two hundred twenty million, eight hundred sixty-six thousand, nine hundred sixty-nine".