540636667511653 has 8 divisors (see below), whose sum is σ = 545095151838072. Its totient is φ = 536195497688256.

The previous prime is 540636667511621. The next prime is 540636667511693. The reversal of 540636667511653 is 356115766636045.

It can be written as a sum of positive squares in 4 ways, for example, as 221747897004804 + 318888770506849 = 14891202^2 + 17857457^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 540636667511653 - 2⁵ = 540636667511621 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 (540636667511693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4328563050 + ... + 4328687947.

It is an arithmetic number, because the mean of its divisors is an integer number (68136893979759).

Almost surely, 2^{540636667511653} is an apocalyptic number.

It is an amenable number.

540636667511653 is a deficient number, since it is larger than the sum of its proper divisors (4458484326419).

540636667511653 is a wasteful number, since it uses less digits than its factorization.

540636667511653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8657251511.

The product of its (nonzero) digits is 244944000, while the sum is 64.

The spelling of 540636667511653 in words is "five hundred forty trillion, six hundred thirty-six billion, six hundred sixty-seven million, five hundred eleven thousand, six hundred fifty-three".