540161465265765 has 24 divisors (see below), whose sum is σ = 1070034140717568. Its totient is φ = 246930955549920.

The previous prime is 540161465265761. The next prime is 540161465265767. The reversal of 540161465265765 is 567562564161045.

It is a happy number.

540161465265765 is a `hidden beast` number, since 5 + 4 + 0 + 1 + 6 + 1 + 4 + 6 + 52 + 6 + 576 + 5 = 666.

It is not a de Polignac number, because 540161465265765 - 2² = 540161465265761 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (540161465265761) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 857399150901 + ... + 857399151530.

It is an arithmetic number, because the mean of its divisors is an integer number (44584755863232).

Almost surely, 2^{540161465265765} is an apocalyptic number.

It is an amenable number.

540161465265765 is a deficient number, since it is larger than the sum of its proper divisors (529872675451803).

540161465265765 is a wasteful number, since it uses less digits than its factorization.

540161465265765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1714798302449 (or 1714798302446 counting only the distinct ones).

The product of its (nonzero) digits is 181440000, while the sum is 63.

The spelling of 540161465265765 in words is "five hundred forty trillion, one hundred sixty-one billion, four hundred sixty-five million, two hundred sixty-five thousand, seven hundred sixty-five".