20117510564045 has 8 divisors (see below), whose sum is σ = 24141036787200. Its totient is φ = 16093992377680.

The previous prime is 20117510564029. The next prime is 20117510564071. The reversal of 20117510564045 is 54046501571102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20117510564045 - 2⁴ = 20117510564029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20117510563993 and 20117510564011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8405600 + ... + 10530390.

It is an arithmetic number, because the mean of its divisors is an integer number (3017629598400).

Almost surely, 2^{20117510564045} is an apocalyptic number.

It is an amenable number.

20117510564045 is a deficient number, since it is larger than the sum of its proper divisors (4023526223155).

20117510564045 is a wasteful number, since it uses less digits than its factorization.

20117510564045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4018395.

The product of its (nonzero) digits is 168000, while the sum is 41.

The spelling of 20117510564045 in words is "twenty trillion, one hundred seventeen billion, five hundred ten million, five hundred sixty-four thousand, forty-five".