2011544340535 has 16 divisors (see below), whose sum is σ = 2542150648800. Its totient is φ = 1523787348096.

The previous prime is 2011544340511. The next prime is 2011544340539. The reversal of 2011544340535 is 5350434451102.

It is a cyclic number.

It is not a de Polignac number, because 2011544340535 - 2²⁷ = 2011410122807 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2011544340494 and 2011544340503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011544340539) 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, 5025124 + ... + 5410633.

It is an arithmetic number, because the mean of its divisors is an integer number (158884415550).

Almost surely, 2^{2011544340535} is an apocalyptic number.

2011544340535 is a deficient number, since it is larger than the sum of its proper divisors (530606308265).

2011544340535 is a wasteful number, since it uses less digits than its factorization.

2011544340535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10437810.

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 2011544340535 its reverse (5350434451102), we get a palindrome (7361978791637).

The spelling of 2011544340535 in words is "two trillion, eleven billion, five hundred forty-four million, three hundred forty thousand, five hundred thirty-five".