220433155 has 16 divisors (see below), whose sum is σ = 279021600. Its totient is φ = 166717440.

The previous prime is 220433141. The next prime is 220433159. The reversal of 220433155 is 551334022.

It is not a de Polignac number, because 220433155 - 2⁵ = 220433123 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220433159) 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, 49251 + ... + 53539.

It is an arithmetic number, because the mean of its divisors is an integer number (17438850).

Almost surely, 2^220433155 is an apocalyptic number.

220433155 is a deficient number, since it is larger than the sum of its proper divisors (58588445).

220433155 is a wasteful number, since it uses less digits than its factorization.

220433155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4854.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 220433155 is about 14846.9914460809. The cubic root of 220433155 is about 604.0770070887.

Adding to 220433155 its reverse (551334022), we get a palindrome (771767177).

The spelling of 220433155 in words is "two hundred twenty million, four hundred thirty-three thousand, one hundred fifty-five".