220244451634 has 8 divisors (see below), whose sum is σ = 331190535708. Its totient is φ = 109847606400.

The previous prime is 220244451611. The next prime is 220244451667. The reversal of 220244451634 is 436154442022.

220244451634 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 2 ways, for example, as 219864396609 + 380055025 = 468897^2 + 19495^2 .

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

It is a super-2 number, since 2×220244451634² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 220244451593 and 220244451602.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 137308707 + ... + 137310310.

Almost surely, 2^220244451634 is an apocalyptic number.

220244451634 is a deficient number, since it is larger than the sum of its proper divisors (110946084074).

220244451634 is a wasteful number, since it uses less digits than its factorization.

220244451634 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274619420.

The product of its (nonzero) digits is 184320, while the sum is 37.

Adding to 220244451634 its reverse (436154442022), we get a palindrome (656398893656).

The spelling of 220244451634 in words is "two hundred twenty billion, two hundred forty-four million, four hundred fifty-one thousand, six hundred thirty-four".