2066860868842 has 96 divisors (see below), whose sum is σ = 3955463829504. Its totient is φ = 800954985600.

The previous prime is 2066860868827. The next prime is 2066860868881. The reversal of 2066860868842 is 2488680686602.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 153995292 + ... + 154008712.

It is an arithmetic number, because the mean of its divisors is an integer number (41202748224).

Almost surely, 2^{2066860868842} is an apocalyptic number.

2066860868842 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2066860868842 is a deficient number, since it is larger than the sum of its proper divisors (1888602960662).

2066860868842 is a wasteful number, since it uses less digits than its factorization.

2066860868842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14204 (or 14197 counting only the distinct ones).

The product of its (nonzero) digits is 84934656, while the sum is 64.

The spelling of 2066860868842 in words is "two trillion, sixty-six billion, eight hundred sixty million, eight hundred sixty-eight thousand, eight hundred forty-two".