220237544164451 has 16 divisors (see below), whose sum is σ = 243579489966720. Its totient is φ = 197449646253120.

The previous prime is 220237544164441. The next prime is 220237544164457. The reversal of 220237544164451 is 154461445732022.

It is a cyclic number.

It is not a de Polignac number, because 220237544164451 - 2⁶ = 220237544164387 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 220237544164451.

It is not an unprimeable number, because it can be changed into a prime (220237544164457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9682241 + ... + 23113218.

It is an arithmetic number, because the mean of its divisors is an integer number (15223718122920).

Almost surely, 2^{220237544164451} is an apocalyptic number.

220237544164451 is a deficient number, since it is larger than the sum of its proper divisors (23341945802269).

220237544164451 is a wasteful number, since it uses less digits than its factorization.

220237544164451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32803906.

The product of its (nonzero) digits is 6451200, while the sum is 50.

Adding to 220237544164451 its reverse (154461445732022), we get a palindrome (374698989896473).

The spelling of 220237544164451 in words is "two hundred twenty trillion, two hundred thirty-seven billion, five hundred forty-four million, one hundred sixty-four thousand, four hundred fifty-one".