120666611 has 8 divisors (see below), whose sum is σ = 130058544. Its totient is φ = 111290400.

The previous prime is 120666577. The next prime is 120666641. The reversal of 120666611 is 116666021.

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

It is not a de Polignac number, because 120666611 - 2¹⁴ = 120650227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120666641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15665 + ... + 22061.

It is an arithmetic number, because the mean of its divisors is an integer number (16257318).

Almost surely, 2^120666611 is an apocalyptic number.

120666611 is a deficient number, since it is larger than the sum of its proper divisors (9391933).

120666611 is a wasteful number, since it uses less digits than its factorization.

120666611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7861.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 120666611 is about 10984.8355017269. The cubic root of 120666611 is about 494.1540644547.

The spelling of 120666611 in words is "one hundred twenty million, six hundred sixty-six thousand, six hundred eleven".