220566656812238 has 64 divisors (see below), whose sum is σ = 372694153328640. Its totient is φ = 97055751592800.

The previous prime is 220566656812237. The next prime is 220566656812283. The reversal of 220566656812238 is 832218656665022.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220566656812237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14343653 + ... + 25433711.

It is an arithmetic number, because the mean of its divisors is an integer number (5823346145760).

Almost surely, 2^{220566656812238} is an apocalyptic number.

220566656812238 is a deficient number, since it is larger than the sum of its proper divisors (152127496516402).

220566656812238 is a wasteful number, since it uses less digits than its factorization.

220566656812238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11090373.

The product of its (nonzero) digits is 99532800, while the sum is 62.

The spelling of 220566656812238 in words is "two hundred twenty trillion, five hundred sixty-six billion, six hundred fifty-six million, eight hundred twelve thousand, two hundred thirty-eight".