120641166 has 12 divisors (see below), whose sum is σ = 261389232. Its totient is φ = 40213716.

The previous prime is 120641159. The next prime is 120641177. The reversal of 120641166 is 661146021.

120641166 is a `hidden beast` number, since 1 + 2 + 0 + 641 + 16 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3351126 + ... + 3351161.

It is an arithmetic number, because the mean of its divisors is an integer number (21782436).

Almost surely, 2^120641166 is an apocalyptic number.

120641166 is an abundant number, since it is smaller than the sum of its proper divisors (140748066).

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

120641166 is a wasteful number, since it uses less digits than its factorization.

120641166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6702295 (or 6702292 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 120641166 is about 10983.6772530879. The cubic root of 120641166 is about 494.1193278804.

Adding to 120641166 its reverse (661146021), we get a palindrome (781787187).

The spelling of 120641166 in words is "one hundred twenty million, six hundred forty-one thousand, one hundred sixty-six".