840066864811101 has 24 divisors (see below), whose sum is σ = 1240956023823360. Its totient is φ = 547480598652000.

The previous prime is 840066864811039. The next prime is 840066864811199. The reversal of 840066864811101 is 101118468660048.

840066864811101 is a `hidden beast` number, since 8 + 40 + 0 + 6 + 6 + 8 + 6 + 481 + 110 + 1 = 666.

It is not a de Polignac number, because 840066864811101 - 2²⁷ = 840066730593373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (840066863811101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5849079885 + ... + 5849223506.

It is an arithmetic number, because the mean of its divisors is an integer number (51706500992640).

Almost surely, 2^{840066864811101} is an apocalyptic number.

It is an amenable number.

840066864811101 is a deficient number, since it is larger than the sum of its proper divisors (400889159012259).

840066864811101 is a wasteful number, since it uses less digits than its factorization.

840066864811101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11698303577 (or 11698303574 counting only the distinct ones).

The product of its (nonzero) digits is 1769472, while the sum is 54.

The spelling of 840066864811101 in words is "eight hundred forty trillion, sixty-six billion, eight hundred sixty-four million, eight hundred eleven thousand, one hundred one".