120055666 has 8 divisors (see below), whose sum is σ = 190676700. Its totient is φ = 56496768.

The previous prime is 120055657. The next prime is 120055681. The reversal of 120055666 is 666550021.

It can be written as a sum of positive squares in 2 ways, for example, as 118352641 + 1703025 = 10879^2 + 1305^2 .

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

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, 1765491 + ... + 1765558.

Almost surely, 2^120055666 is an apocalyptic number.

120055666 is a deficient number, since it is larger than the sum of its proper divisors (70621034).

120055666 is a wasteful number, since it uses less digits than its factorization.

120055666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3531068.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 120055666 is about 10956.9916491709. The cubic root of 120055666 is about 493.3186720543.

It can be divided in two parts, 12005 and 5666, that added together give a palindrome (17671).

The spelling of 120055666 in words is "one hundred twenty million, fifty-five thousand, six hundred sixty-six".