555106666 has 16 divisors (see below), whose sum is σ = 837293184. Its totient is φ = 276013584.

The previous prime is 555106663. The next prime is 555106681. The reversal of 555106666 is 666601555.

It is not an unprimeable number, because it can be changed into a prime (555106663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425371 + ... + 426673.

It is an arithmetic number, because the mean of its divisors is an integer number (52330824).

Almost surely, 2^555106666 is an apocalyptic number.

555106666 is a deficient number, since it is larger than the sum of its proper divisors (282186518).

555106666 is a wasteful number, since it uses less digits than its factorization.

555106666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2325.

The product of its (nonzero) digits is 162000, while the sum is 40.

The square root of 555106666 is about 23560.7017297873. The cubic root of 555106666 is about 821.8492204148.

The spelling of 555106666 in words is "five hundred fifty-five million, one hundred six thousand, six hundred sixty-six".