540665664534311 has 4 divisors (see below), whose sum is σ = 569121752141400. Its totient is φ = 512209576927224.

The previous prime is 540665664534253. The next prime is 540665664534353. The reversal of 540665664534311 is 113435466566045.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-540665664534311 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 (540665664534361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14228043803516 + ... + 14228043803553.

It is an arithmetic number, because the mean of its divisors is an integer number (142280438035350).

Almost surely, 2^{540665664534311} is an apocalyptic number.

540665664534311 is a deficient number, since it is larger than the sum of its proper divisors (28456087607089).

540665664534311 is a wasteful number, since it uses less digits than its factorization.

540665664534311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28456087607088.

The product of its (nonzero) digits is 93312000, while the sum is 59.

The spelling of 540665664534311 in words is "five hundred forty trillion, six hundred sixty-five billion, six hundred sixty-four million, five hundred thirty-four thousand, three hundred eleven".