12066020 has 24 divisors (see below), whose sum is σ = 25515000. Its totient is φ = 4792832.

The previous prime is 12065993. The next prime is 12066023. The reversal of 12066020 is 2066021.

It can be written as a sum of positive squares in 4 ways, for example, as 11236 + 12054784 = 106^2 + 3472^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12066020.

It is not an unprimeable number, because it can be changed into a prime (12066023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 956 + ... + 5004.

It is an arithmetic number, because the mean of its divisors is an integer number (1063125).

Almost surely, 2^12066020 is an apocalyptic number.

12066020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12066020 is an abundant number, since it is smaller than the sum of its proper divisors (13448980).

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

12066020 is a wasteful number, since it uses less digits than its factorization.

12066020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4207 (or 4205 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 12066020 is about 3473.6177106872. The cubic root of 12066020 is about 229.3619366328.

Subtracting from 12066020 its reverse (2066021), we obtain a palindrome (9999999).

The spelling of 12066020 in words is "twelve million, sixty-six thousand, twenty".