20081368126 has 8 divisors (see below), whose sum is σ = 31431706704. Its totient is φ = 9604132560.

The previous prime is 20081368081. The next prime is 20081368187. The reversal of 20081368126 is 62186318002.

It is a happy number.

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

It is a super-2 number, since 2×20081368126² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 218275695 + ... + 218275786.

It is an arithmetic number, because the mean of its divisors is an integer number (3928963338).

Almost surely, 2^20081368126 is an apocalyptic number.

20081368126 is a deficient number, since it is larger than the sum of its proper divisors (11350338578).

20081368126 is a wasteful number, since it uses less digits than its factorization.

20081368126 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436551506.

The product of its (nonzero) digits is 27648, while the sum is 37.

The spelling of 20081368126 in words is "twenty billion, eighty-one million, three hundred sixty-eight thousand, one hundred twenty-six".