220383855 has 16 divisors (see below), whose sum is σ = 391793760. Its totient is φ = 117537984.

The previous prime is 220383853. The next prime is 220383857. The reversal of 220383855 is 558383022.

220383855 is a `hidden beast` number, since 220 + 383 + 8 + 55 = 666.

It is an interprime number because it is at equal distance from previous prime (220383853) and next prime (220383857).

It is not a de Polignac number, because 220383855 - 2¹ = 220383853 is a prime.

It is a super-2 number, since 2×220383855² = 97138087089322050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220383853) 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, 816102 + ... + 816371.

It is an arithmetic number, because the mean of its divisors is an integer number (24487110).

Almost surely, 2^220383855 is an apocalyptic number.

220383855 is a deficient number, since it is larger than the sum of its proper divisors (171409905).

220383855 is a wasteful number, since it uses less digits than its factorization.

220383855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1632487 (or 1632481 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 220383855 is about 14845.3310842163. The cubic root of 220383855 is about 604.0319696760.

The spelling of 220383855 in words is "two hundred twenty million, three hundred eighty-three thousand, eight hundred fifty-five".