6540144045165 has 24 divisors (see below), whose sum is σ = 11367827003520. Its totient is φ = 3478360724064.

The previous prime is 6540144045151. The next prime is 6540144045191. The reversal of 6540144045165 is 5615404410456.

6540144045165 is a `hidden beast` number, since 6 + 5 + 4 + 0 + 1 + 440 + 45 + 165 = 666.

It is not a de Polignac number, because 6540144045165 - 2⁸ = 6540144044909 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 6540144045165.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 202402417 + ... + 202434726.

It is an arithmetic number, because the mean of its divisors is an integer number (473659458480).

Almost surely, 2^{6540144045165} is an apocalyptic number.

It is an amenable number.

6540144045165 is a deficient number, since it is larger than the sum of its proper divisors (4827682958355).

6540144045165 is a wasteful number, since it uses less digits than its factorization.

6540144045165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404837513 (or 404837510 counting only the distinct ones).

The product of its (nonzero) digits is 1152000, while the sum is 45.

The spelling of 6540144045165 in words is "six trillion, five hundred forty billion, one hundred forty-four million, forty-five thousand, one hundred sixty-five".