55105150566 has 16 divisors (see below), whose sum is σ = 112289741424. Its totient is φ = 18021810144.

The previous prime is 55105150559. The next prime is 55105150571. The reversal of 55105150566 is 66505150155.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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, 86643001 + ... + 86643636.

It is an arithmetic number, because the mean of its divisors is an integer number (7018108839).

Almost surely, 2^55105150566 is an apocalyptic number.

55105150566 is an abundant number, since it is smaller than the sum of its proper divisors (57184590858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55105150566 is a wasteful number, since it uses less digits than its factorization.

55105150566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173286695.

The product of its (nonzero) digits is 112500, while the sum is 39.

The spelling of 55105150566 in words is "fifty-five billion, one hundred five million, one hundred fifty thousand, five hundred sixty-six".