20066163607845 has 16 divisors (see below), whose sum is σ = 35673179747520. Its totient is φ = 10701953924112.

The previous prime is 20066163607837. The next prime is 20066163607879. The reversal of 20066163607845 is 54870636166002.

20066163607845 is a `hidden beast` number, since 20 + 0 + 6 + 6 + 1 + 6 + 3 + 607 + 8 + 4 + 5 = 666.

It is not a de Polignac number, because 20066163607845 - 2³ = 20066163607837 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20066163607791 and 20066163607800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74319124339 + ... + 74319124608.

It is an arithmetic number, because the mean of its divisors is an integer number (2229573734220).

Almost surely, 2^{20066163607845} is an apocalyptic number.

It is an amenable number.

20066163607845 is a deficient number, since it is larger than the sum of its proper divisors (15607016139675).

20066163607845 is a wasteful number, since it uses less digits than its factorization.

20066163607845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148638248961 (or 148638248955 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The spelling of 20066163607845 in words is "twenty trillion, sixty-six billion, one hundred sixty-three million, six hundred seven thousand, eight hundred forty-five".