20126262072105 has 24 divisors (see below), whose sum is σ = 39869166772032. Its totient is φ = 9200576947104.

The previous prime is 20126262072071. The next prime is 20126262072107. The reversal of 20126262072105 is 50127026262102.

20126262072105 is a `hidden beast` number, since 2 + 0 + 1 + 2 + 6 + 2 + 620 + 7 + 21 + 0 + 5 = 666.

It is not a de Polignac number, because 20126262072105 - 2⁶ = 20126262072041 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20126262072105.

It is not an unprimeable number, because it can be changed into a prime (20126262072107) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 31946447419 + ... + 31946448048.

It is an arithmetic number, because the mean of its divisors is an integer number (1661215282168).

Almost surely, 2^{20126262072105} is an apocalyptic number.

It is an amenable number.

20126262072105 is a deficient number, since it is larger than the sum of its proper divisors (19742904699927).

20126262072105 is a wasteful number, since it uses less digits than its factorization.

20126262072105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63892895485 (or 63892895482 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 20126262072105 in words is "twenty trillion, one hundred twenty-six billion, two hundred sixty-two million, seventy-two thousand, one hundred five".