20013061705368 has 64 divisors (see below), whose sum is σ = 50056358248800. Its totient is φ = 6667860679680.

The previous prime is 20013061705313. The next prime is 20013061705369. The reversal of 20013061705368 is 86350716031002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013061705369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 758258380 + ... + 758284772.

Almost surely, 2^{20013061705368} is an apocalyptic number.

It is an amenable number.

20013061705368 is an abundant number, since it is smaller than the sum of its proper divisors (30043296543432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20013061705368 is a wasteful number, since it uses less digits than its factorization.

20013061705368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40172 (or 40168 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 20013061705368 in words is "twenty trillion, thirteen billion, sixty-one million, seven hundred five thousand, three hundred sixty-eight".