54554362166566 has 16 divisors (see below), whose sum is σ = 84599784125280. Its totient is φ = 26364198643200.

The previous prime is 54554362166561. The next prime is 54554362166587. The reversal of 54554362166566 is 66566126345545.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 54554362166498 and 54554362166507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54554362166561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2441118331 + ... + 2441140678.

It is an arithmetic number, because the mean of its divisors is an integer number (5287486507830).

Almost surely, 2^{54554362166566} is an apocalyptic number.

54554362166566 is a deficient number, since it is larger than the sum of its proper divisors (30045421958714).

54554362166566 is a wasteful number, since it uses less digits than its factorization.

54554362166566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4882259199.

The product of its digits is 466560000, while the sum is 64.

The spelling of 54554362166566 in words is "fifty-four trillion, five hundred fifty-four billion, three hundred sixty-two million, one hundred sixty-six thousand, five hundred sixty-six".