20734223806 has 16 divisors (see below), whose sum is σ = 31769337600. Its totient is φ = 10144531800.

The previous prime is 20734223789. The next prime is 20734223813. The reversal of 20734223806 is 60832243702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 531145 + ... + 568843.

It is an arithmetic number, because the mean of its divisors is an integer number (1985583600).

Almost surely, 2^20734223806 is an apocalyptic number.

20734223806 is a deficient number, since it is larger than the sum of its proper divisors (11035113794).

20734223806 is a wasteful number, since it uses less digits than its factorization.

20734223806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43599.

The product of its (nonzero) digits is 96768, while the sum is 37.

The spelling of 20734223806 in words is "twenty billion, seven hundred thirty-four million, two hundred twenty-three thousand, eight hundred six".