555112666 has 4 divisors (see below), whose sum is σ = 832669002. Its totient is φ = 277556332.

The previous prime is 555112639. The next prime is 555112681. The reversal of 555112666 is 666211555.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 552485025 + 2627641 = 23505^2 + 1621^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 138778165 + ... + 138778168.

Almost surely, 2^555112666 is an apocalyptic number.

555112666 is a deficient number, since it is larger than the sum of its proper divisors (277556336).

555112666 is a wasteful number, since it uses less digits than its factorization.

555112666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277556335.

The product of its digits is 54000, while the sum is 37.

The square root of 555112666 is about 23560.8290601159. The cubic root of 555112666 is about 821.8521814538.

The spelling of 555112666 in words is "five hundred fifty-five million, one hundred twelve thousand, six hundred sixty-six".