54006645565 has 16 divisors (see below), whose sum is σ = 65317418496. Its totient is φ = 42867014400.

The previous prime is 54006645521. The next prime is 54006645571. The reversal of 54006645565 is 56554660045.

It is not a de Polignac number, because 54006645565 - 2¹⁷ = 54006514493 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243864 + ... + 409246.

It is an arithmetic number, because the mean of its divisors is an integer number (4082338656).

Almost surely, 2^54006645565 is an apocalyptic number.

It is an amenable number.

54006645565 is a deficient number, since it is larger than the sum of its proper divisors (11310772931).

54006645565 is a wasteful number, since it uses less digits than its factorization.

54006645565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165900.

The product of its (nonzero) digits is 2160000, while the sum is 46.

The spelling of 54006645565 in words is "fifty-four billion, six million, six hundred forty-five thousand, five hundred sixty-five".