2066220642123 has 32 divisors (see below), whose sum is σ = 3394089907200. Its totient is φ = 1231726154400.

The previous prime is 2066220642107. The next prime is 2066220642127. The reversal of 2066220642123 is 3212460226602.

2066220642123 is a `hidden beast` number, since 2 + 0 + 6 + 6 + 2 + 2 + 0 + 642 + 1 + 2 + 3 = 666.

It is not a de Polignac number, because 2066220642123 - 2⁴ = 2066220642107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2066220642127) 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, 57006243 + ... + 57042476.

It is an arithmetic number, because the mean of its divisors is an integer number (106065309600).

Almost surely, 2^{2066220642123} is an apocalyptic number.

2066220642123 is a deficient number, since it is larger than the sum of its proper divisors (1327869265077).

2066220642123 is a wasteful number, since it uses less digits than its factorization.

2066220642123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114048800 (or 114048794 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

Adding to 2066220642123 its reverse (3212460226602), we get a palindrome (5278680868725).

The spelling of 2066220642123 in words is "two trillion, sixty-six billion, two hundred twenty million, six hundred forty-two thousand, one hundred twenty-three".