540053616645 has 24 divisors (see below), whose sum is σ = 968372004600. Its totient is φ = 278096574336.

The previous prime is 540053616637. The next prime is 540053616653. The reversal of 540053616645 is 546616350045.

540053616645 is a `hidden beast` number, since 5 + 40 + 0 + 536 + 16 + 64 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (540053616637) and next prime (540053616653).

It can be written as a sum of positive squares in 4 ways, for example, as 4238400609 + 535815216036 = 65103^2 + 731994^2 .

It is not a de Polignac number, because 540053616645 - 2³ = 540053616637 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 540053616645.

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, 206915790 + ... + 206918399.

It is an arithmetic number, because the mean of its divisors is an integer number (40348833525).

Almost surely, 2^540053616645 is an apocalyptic number.

It is an amenable number.

540053616645 is a deficient number, since it is larger than the sum of its proper divisors (428318387955).

540053616645 is a wasteful number, since it uses less digits than its factorization.

540053616645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413834229 (or 413834226 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 45.

The spelling of 540053616645 in words is "five hundred forty billion, fifty-three million, six hundred sixteen thousand, six hundred forty-five".