120543666 has 8 divisors (see below), whose sum is σ = 241087344. Its totient is φ = 40181220.

The previous prime is 120543629. The next prime is 120543671. The reversal of 120543666 is 666345021.

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

120543666 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10045300 + ... + 10045311.

It is an arithmetic number, because the mean of its divisors is an integer number (30135918).

Almost surely, 2^120543666 is an apocalyptic number.

120543666 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

120543666 is a wasteful number, since it uses less digits than its factorization.

120543666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20090616.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 120543666 is about 10979.2379516977. The cubic root of 120543666 is about 493.9861792480.

Adding to 120543666 its reverse (666345021), we get a palindrome (786888687).

The spelling of 120543666 in words is "one hundred twenty million, five hundred forty-three thousand, six hundred sixty-six".