2066606692580 has 12 divisors (see below), whose sum is σ = 4339874054460. Its totient is φ = 826642677024.

The previous prime is 2066606692561. The next prime is 2066606692583. The reversal of 2066606692580 is 852966066602.

It can be written as a sum of positive squares in 2 ways, for example, as 780088167076 + 1286518525504 = 883226^2 + 1134248^2 .

It is not an unprimeable number, because it can be changed into a prime (2066606692583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51665167295 + ... + 51665167334.

It is an arithmetic number, because the mean of its divisors is an integer number (361656171205).

Almost surely, 2^{2066606692580} is an apocalyptic number.

2066606692580 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2066606692580 is an abundant number, since it is smaller than the sum of its proper divisors (2273267361880).

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

2066606692580 is a wasteful number, since it uses less digits than its factorization.

2066606692580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103330334638 (or 103330334636 counting only the distinct ones).

The product of its (nonzero) digits is 11197440, while the sum is 56.

The spelling of 2066606692580 in words is "two trillion, sixty-six billion, six hundred six million, six hundred ninety-two thousand, five hundred eighty".