54455061566 has 16 divisors (see below), whose sum is σ = 82169122464. Its totient is φ = 27065409504.

The previous prime is 54455061491. The next prime is 54455061569. The reversal of 54455061566 is 66516055445.

It is a self number, because there is not a number n which added to its sum of digits gives 54455061566.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54455061569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2790455 + ... + 2809901.

It is an arithmetic number, because the mean of its divisors is an integer number (5135570154).

Almost surely, 2^54455061566 is an apocalyptic number.

54455061566 is a deficient number, since it is larger than the sum of its proper divisors (27714060898).

54455061566 is a wasteful number, since it uses less digits than its factorization.

54455061566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27715.

The product of its (nonzero) digits is 2160000, while the sum is 47.

The spelling of 54455061566 in words is "fifty-four billion, four hundred fifty-five million, sixty-one thousand, five hundred sixty-six".