220256366 has 16 divisors (see below), whose sum is σ = 362417328. Its totient is φ = 99561600.

The previous prime is 220256357. The next prime is 220256371. The reversal of 220256366 is 663652022.

It is a congruent number.

It is an unprimeable number.

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, 23675 + ... + 31638.

It is an arithmetic number, because the mean of its divisors is an integer number (22651083).

Almost surely, 2^220256366 is an apocalyptic number.

220256366 is a deficient number, since it is larger than the sum of its proper divisors (142160962).

220256366 is a wasteful number, since it uses less digits than its factorization.

220256366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55507.

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 220256366 is about 14841.0365540955. The cubic root of 220256366 is about 603.9154725067.

The spelling of 220256366 in words is "two hundred twenty million, two hundred fifty-six thousand, three hundred sixty-six".