20013061705504 has 24 divisors (see below), whose sum is σ = 45029388837888. Its totient is φ = 8577026445120.

The previous prime is 20013061705477. The next prime is 20013061705547. The reversal of 20013061705504 is 40550716031002.

It is a self number, because there is not a number n which added to its sum of digits gives 20013061705504.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44672012512 + ... + 44672012959.

It is an arithmetic number, because the mean of its divisors is an integer number (1876224534912).

Almost surely, 2^{20013061705504} is an apocalyptic number.

It is an amenable number.

20013061705504 is an abundant number, since it is smaller than the sum of its proper divisors (25016327132384).

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

20013061705504 is an equidigital number, since it uses as much as digits as its factorization.

20013061705504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89344025488 (or 89344025480 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

Adding to 20013061705504 its reverse (40550716031002), we get a palindrome (60563777736506).

The spelling of 20013061705504 in words is "twenty trillion, thirteen billion, sixty-one million, seven hundred five thousand, five hundred four".