20665241334 has 24 divisors (see below), whose sum is σ = 44777839392. Its totient is φ = 6887929200.

The previous prime is 20665241329. The next prime is 20665241381. The reversal of 20665241334 is 43314256602.

20665241334 is a `hidden beast` number, since 20 + 6 + 65 + 241 + 334 = 666.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 300259 + ... + 362609.

It is an arithmetic number, because the mean of its divisors is an integer number (1865743308).

Almost surely, 2^20665241334 is an apocalyptic number.

20665241334 is an abundant number, since it is smaller than the sum of its proper divisors (24112598058).

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

20665241334 is a wasteful number, since it uses less digits than its factorization.

20665241334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80772 (or 80769 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

Adding to 20665241334 its reverse (43314256602), we get a palindrome (63979497936).

The spelling of 20665241334 in words is "twenty billion, six hundred sixty-five million, two hundred forty-one thousand, three hundred thirty-four".