20135044245 has 16 divisors (see below), whose sum is σ = 33086776320. Its totient is φ = 10448455104.

The previous prime is 20135044243. The next prime is 20135044313. The reversal of 20135044245 is 54244053102.

It is not a de Polignac number, because 20135044245 - 2¹ = 20135044243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20135044243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18139125 + ... + 18140234.

It is an arithmetic number, because the mean of its divisors is an integer number (2067923520).

Almost surely, 2^20135044245 is an apocalyptic number.

It is an amenable number.

20135044245 is a deficient number, since it is larger than the sum of its proper divisors (12951732075).

20135044245 is a wasteful number, since it uses less digits than its factorization.

20135044245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36279404.

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 20135044245 its reverse (54244053102), we get a palindrome (74379097347).

The spelling of 20135044245 in words is "twenty billion, one hundred thirty-five million, forty-four thousand, two hundred forty-five".