54665047164845 has 8 divisors (see below), whose sum is σ = 70644060951576. Its totient is φ = 40368034829376.

The previous prime is 54665047164733. The next prime is 54665047164859. The reversal of 54665047164845 is 54846174056645.

It can be written as a sum of positive squares in 4 ways, for example, as 2617205657284 + 52047841507561 = 1617778^2 + 7214419^2 .

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 54665047164845 - 2²⁰ = 54665046116269 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (65), and also a Moran number because the ratio is a prime number: 841000725613 = 54665047164845 / (5 + 4 + 6 + 6 + 5 + 0 + 4 + 7 + 1 + 6 + 4 + 8 + 4 + 5).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 420500362742 + ... + 420500362871.

It is an arithmetic number, because the mean of its divisors is an integer number (8830507618947).

Almost surely, 2^{54665047164845} is an apocalyptic number.

It is an amenable number.

54665047164845 is a deficient number, since it is larger than the sum of its proper divisors (15979013786731).

54665047164845 is a wasteful number, since it uses less digits than its factorization.

54665047164845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841000725631.

The product of its (nonzero) digits is 387072000, while the sum is 65.

The spelling of 54665047164845 in words is "fifty-four trillion, six hundred sixty-five billion, forty-seven million, one hundred sixty-four thousand, eight hundred forty-five".