2066108884461 has 48 divisors (see below), whose sum is σ = 3237412349808. Its totient is φ = 1264602931200.

The previous prime is 2066108884459. The next prime is 2066108884471. The reversal of 2066108884461 is 1644888016602.

It is a happy number.

2066108884461 is a `hidden beast` number, since 20 + 6 + 6 + 1 + 0 + 88 + 84 + 461 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 548947628100 + 1517161256361 = 740910^2 + 1231731^2 .

It is not a de Polignac number, because 2066108884461 - 2¹ = 2066108884459 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2066108884398 and 2066108884407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2066108884451) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 66459441 + ... + 66490521.

It is an arithmetic number, because the mean of its divisors is an integer number (67446090621).

Almost surely, 2^{2066108884461} is an apocalyptic number.

It is an amenable number.

2066108884461 is a deficient number, since it is larger than the sum of its proper divisors (1171303465347).

2066108884461 is a wasteful number, since it uses less digits than its factorization.

2066108884461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41742 (or 41739 counting only the distinct ones).

The product of its (nonzero) digits is 3538944, while the sum is 54.

The spelling of 2066108884461 in words is "two trillion, sixty-six billion, one hundred eight million, eight hundred eighty-four thousand, four hundred sixty-one".