120166158 has 64 divisors (see below), whose sum is σ = 287608320. Its totient is φ = 32752512.

The previous prime is 120166139. The next prime is 120166159. The reversal of 120166158 is 851661021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120166159) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81633 + ... + 83091.

It is an arithmetic number, because the mean of its divisors is an integer number (4493880).

Almost surely, 2^120166158 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120166158, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143804160).

120166158 is an abundant number, since it is smaller than the sum of its proper divisors (167442162).

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

120166158 is a wasteful number, since it uses less digits than its factorization.

120166158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1561.

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 120166158 is about 10962.0325670014. The cubic root of 120166158 is about 493.4699659088.

The spelling of 120166158 in words is "one hundred twenty million, one hundred sixty-six thousand, one hundred fifty-eight".