220244451633 has 6 divisors (see below), whose sum is σ = 318130874594. Its totient is φ = 146829634416.

The previous prime is 220244451611. The next prime is 220244451667. The reversal of 220244451633 is 336154442022.

220244451633 is a `hidden beast` number, since 2 + 202 + 4 + 445 + 1 + 6 + 3 + 3 = 666.

220244451633 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 219259935504 + 984516129 = 468252^2 + 31377^2 .

It is not a de Polignac number, because 220244451633 - 2¹² = 220244447537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (220244451733) 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 5 ways as a sum of consecutive naturals, for example, 12235802860 + ... + 12235802877.

Almost surely, 2^220244451633 is an apocalyptic number.

It is an amenable number.

220244451633 is a deficient number, since it is larger than the sum of its proper divisors (97886422961).

220244451633 is a wasteful number, since it uses less digits than its factorization.

220244451633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24471605743 (or 24471605740 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 36.

Adding to 220244451633 its reverse (336154442022), we get a palindrome (556398893655).

The spelling of 220244451633 in words is "two hundred twenty billion, two hundred forty-four million, four hundred fifty-one thousand, six hundred thirty-three".