55016166066 has 16 divisors (see below), whose sum is σ = 110898729984. Its totient is φ = 18194322384.

The previous prime is 55016166061. The next prime is 55016166077. The reversal of 55016166066 is 66066161055.

It is not an unprimeable number, because it can be changed into a prime (55016166061) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 36099085 + ... + 36100608.

It is an arithmetic number, because the mean of its divisors is an integer number (6931170624).

Almost surely, 2^55016166066 is an apocalyptic number.

55016166066 is an abundant number, since it is smaller than the sum of its proper divisors (55882563918).

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

55016166066 is a wasteful number, since it uses less digits than its factorization.

55016166066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72199825.

The product of its (nonzero) digits is 194400, while the sum is 42.

The spelling of 55016166066 in words is "fifty-five billion, sixteen million, one hundred sixty-six thousand, sixty-six".