220266645 has 16 divisors (see below), whose sum is σ = 356674752. Its totient is φ = 116059520.

The previous prime is 220266643. The next prime is 220266659. The reversal of 220266645 is 546662022.

It is not a de Polignac number, because 220266645 - 2¹ = 220266643 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220266643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87216 + ... + 89705.

It is an arithmetic number, because the mean of its divisors is an integer number (22292172).

Almost surely, 2^220266645 is an apocalyptic number.

It is an amenable number.

220266645 is a deficient number, since it is larger than the sum of its proper divisors (136408107).

220266645 is a wasteful number, since it uses less digits than its factorization.

220266645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177012.

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 220266645 is about 14841.3828533597. The cubic root of 220266645 is about 603.9248669391.

The spelling of 220266645 in words is "two hundred twenty million, two hundred sixty-six thousand, six hundred forty-five".