120666000 has 480 divisors, whose sum is σ = 509753088. Its totient is φ = 23961600.

The previous prime is 120665989. The next prime is 120666019. The reversal of 120666000 is 666021.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

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 in 95 ways as a sum of consecutive naturals, for example, 7097992 + ... + 7098008.

Almost surely, 2^120666000 is an apocalyptic number.

120666000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120666000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (254876544).

120666000 is an abundant number, since it is smaller than the sum of its proper divisors (389087088).

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

120666000 is a wasteful number, since it uses less digits than its factorization.

120666000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76 (or 47 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 120666000 is about 10984.8076906244. The cubic root of 120666000 is about 494.1532303973.

Adding to 120666000 its sum of digits (21), we get a palindrome (120666021).

The spelling of 120666000 in words is "one hundred twenty million, six hundred sixty-six thousand".