20852075054161 has 16 divisors (see below), whose sum is σ = 22540538051584. Its totient is φ = 19175698275264.

The previous prime is 20852075054147. The next prime is 20852075054179. The reversal of 20852075054161 is 16145057025802.

It is a cyclic number.

It is not a de Polignac number, because 20852075054161 - 2⁴¹ = 18653051798609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20852075054101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23705560 + ... + 24569446.

It is an arithmetic number, because the mean of its divisors is an integer number (1408783628224).

Almost surely, 2^{20852075054161} is an apocalyptic number.

It is an amenable number.

20852075054161 is a deficient number, since it is larger than the sum of its proper divisors (1688462997423).

20852075054161 is a wasteful number, since it uses less digits than its factorization.

20852075054161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870880.

The product of its (nonzero) digits is 672000, while the sum is 46.

The spelling of 20852075054161 in words is "twenty trillion, eight hundred fifty-two billion, seventy-five million, fifty-four thousand, one hundred sixty-one".