120666546 has 192 divisors, whose sum is σ = 362509056. Its totient is φ = 27993600.

The previous prime is 120666541. The next prime is 120666551. The reversal of 120666546 is 645666021.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (120666541) and next prime (120666551).

It is a self number, because there is not a number n which added to its sum of digits gives 120666546.

It is not an unprimeable number, because it can be changed into a prime (120666541) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 666576 + ... + 666756.

It is an arithmetic number, because the mean of its divisors is an integer number (1888068).

Almost surely, 2^120666546 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 120666546, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181254528).

120666546 is an abundant number, since it is smaller than the sum of its proper divisors (241842510).

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

120666546 is a wasteful number, since it uses less digits than its factorization.

120666546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257 (or 254 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 120666546 is about 10984.8325431023. The cubic root of 120666546 is about 494.1539757253.

It can be divided in two parts, 120 and 666546, that added together give a palindrome (666666).

The spelling of 120666546 in words is "one hundred twenty million, six hundred sixty-six thousand, five hundred forty-six".