220664135 has 8 divisors (see below), whose sum is σ = 266128800. Its totient is φ = 175643424.

The previous prime is 220664117. The next prime is 220664137. The reversal of 220664135 is 531466022.

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

It is a cyclic number.

It is not a de Polignac number, because 220664135 - 2¹² = 220660039 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220664098 and 220664107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220664137) 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, 109892 + ... + 111881.

It is an arithmetic number, because the mean of its divisors is an integer number (33266100).

Almost surely, 2^220664135 is an apocalyptic number.

220664135 is a deficient number, since it is larger than the sum of its proper divisors (45464665).

220664135 is a wasteful number, since it uses less digits than its factorization.

220664135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221977.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 220664135 is about 14854.7680897414. The cubic root of 220664135 is about 604.2879266609.

The spelling of 220664135 in words is "two hundred twenty million, six hundred sixty-four thousand, one hundred thirty-five".