20110643344 has 75 divisors (see below), whose sum is σ = 43007323465. Its totient is φ = 9110002880.

The previous prime is 20110643327. The next prime is 20110643351. The reversal of 20110643344 is 44334601102.

The square root of 20110643344 is 141812.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 19027443600 + 1083199744 = 137940^2 + 32912^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 68636862 + ... + 68637154.

Almost surely, 2^20110643344 is an apocalyptic number.

20110643344 is the 141812-nd square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20110643344

20110643344 is an abundant number, since it is smaller than the sum of its proper divisors (22896680121).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20110643344 is an frugal number, since it uses more digits than its factorization.

20110643344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 638 (or 306 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

The spelling of 20110643344 in words is "twenty billion, one hundred ten million, six hundred forty-three thousand, three hundred forty-four".