20013061404215 has 64 divisors (see below), whose sum is σ = 26736976253952. Its totient is φ = 14256956313600.

The previous prime is 20013061404211. The next prime is 20013061404229. The reversal of 20013061404215 is 51240416031002.

It is not a de Polignac number, because 20013061404215 - 2² = 20013061404211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013061404211) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8659912910 + ... + 8659915220.

It is an arithmetic number, because the mean of its divisors is an integer number (417765253968).

Almost surely, 2^{20013061404215} is an apocalyptic number.

20013061404215 is a deficient number, since it is larger than the sum of its proper divisors (6723914849737).

20013061404215 is a wasteful number, since it uses less digits than its factorization.

20013061404215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5960.

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 20013061404215 its reverse (51240416031002), we get a palindrome (71253477435217).

The spelling of 20013061404215 in words is "twenty trillion, thirteen billion, sixty-one million, four hundred four thousand, two hundred fifteen".