20013363527215 has 16 divisors (see below), whose sum is σ = 25280913974400. Its totient is φ = 15167497383072.

The previous prime is 20013363527141. The next prime is 20013363527219. The reversal of 20013363527215 is 51272536331002.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20013363527215 - 2²³ = 20013355138607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20013363527219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 881817 + ... + 6387826.

It is an arithmetic number, because the mean of its divisors is an integer number (1580057123400).

Almost surely, 2^{20013363527215} is an apocalyptic number.

20013363527215 is a deficient number, since it is larger than the sum of its proper divisors (5267550447185).

20013363527215 is a wasteful number, since it uses less digits than its factorization.

20013363527215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7298646.

The product of its (nonzero) digits is 226800, while the sum is 40.

Adding to 20013363527215 its reverse (51272536331002), we get a palindrome (71285899858217).

The spelling of 20013363527215 in words is "twenty trillion, thirteen billion, three hundred sixty-three million, five hundred twenty-seven thousand, two hundred fifteen".