20013725403266 has 48 divisors (see below), whose sum is σ = 36451261608576. Its totient is φ = 8071631299584.

The previous prime is 20013725403263. The next prime is 20013725403271. The reversal of 20013725403266 is 66230452731002.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20013725403263) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28816346 + ... + 29502698.

It is an arithmetic number, because the mean of its divisors is an integer number (759401283512).

Almost surely, 2^{20013725403266} is an apocalyptic number.

20013725403266 is a deficient number, since it is larger than the sum of its proper divisors (16437536205310).

20013725403266 is a wasteful number, since it uses less digits than its factorization.

20013725403266 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 693603 (or 693586 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 41.

The spelling of 20013725403266 in words is "twenty trillion, thirteen billion, seven hundred twenty-five million, four hundred three thousand, two hundred sixty-six".