55005500066 has 8 divisors (see below), whose sum is σ = 90009000144. Its totient is φ = 25002500020.

The previous prime is 55005500051. The next prime is 55005500089. The reversal of 55005500066 is 66000550055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a zygodrome in base 10.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1250124980 + ... + 1250125023.

It is an arithmetic number, because the mean of its divisors is an integer number (11251125018).

Almost surely, 2^55005500066 is an apocalyptic number.

55005500066 is a deficient number, since it is larger than the sum of its proper divisors (35003500078).

55005500066 is a wasteful number, since it uses less digits than its factorization.

55005500066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2500250016.

The product of its (nonzero) digits is 22500, while the sum is 32.

The spelling of 55005500066 in words is "fifty-five billion, five million, five hundred thousand, sixty-six".