20013105726268 has 6 divisors (see below), whose sum is σ = 35022935020976. Its totient is φ = 10006552863132.

The previous prime is 20013105726241. The next prime is 20013105726307. The reversal of 20013105726268 is 86262750131002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2501638215780 + ... + 2501638215787.

Almost surely, 2^{20013105726268} is an apocalyptic number.

It is an amenable number.

20013105726268 is a deficient number, since it is larger than the sum of its proper divisors (15009829294708).

20013105726268 is a wasteful number, since it uses less digits than its factorization.

20013105726268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5003276431571 (or 5003276431569 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 20013105726268 in words is "twenty trillion, thirteen billion, one hundred five million, seven hundred twenty-six thousand, two hundred sixty-eight".