20726224159 has 8 divisors (see below), whose sum is σ = 21216812672. Its totient is φ = 20236025880.

The previous prime is 20726224153. The next prime is 20726224193. The reversal of 20726224159 is 95142262702.

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

It is a cyclic number.

It is not a de Polignac number, because 20726224159 - 2⁷ = 20726224031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20726224153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11344 + ... + 203914.

It is an arithmetic number, because the mean of its divisors is an integer number (2652101584).

Almost surely, 2^20726224159 is an apocalyptic number.

20726224159 is a deficient number, since it is larger than the sum of its proper divisors (490588513).

20726224159 is a wasteful number, since it uses less digits than its factorization.

20726224159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195117.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 20726224159 in words is "twenty billion, seven hundred twenty-six million, two hundred twenty-four thousand, one hundred fifty-nine".