20117511065632 has 48 divisors (see below), whose sum is σ = 39711371175000. Its totient is φ = 10032113295360.

The previous prime is 20117511065581. The next prime is 20117511065633. The reversal of 20117511065632 is 23656011571102.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 18672043485456 + 1445467580176 = 4321116^2 + 1202276^2 .

It is not an unprimeable number, because it can be changed into a prime (20117511065633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21157494 + ... + 22087882.

Almost surely, 2^{20117511065632} is an apocalyptic number.

It is an amenable number.

20117511065632 is a deficient number, since it is larger than the sum of its proper divisors (19593860109368).

20117511065632 is a wasteful number, since it uses less digits than its factorization.

20117511065632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932189 (or 932181 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 40.

The spelling of 20117511065632 in words is "twenty trillion, one hundred seventeen billion, five hundred eleven million, sixty-five thousand, six hundred thirty-two".