20117670725533 has 4 divisors (see below), whose sum is σ = 20118758597308. Its totient is φ = 20116582853760.

The previous prime is 20117670725527. The next prime is 20117670725563. The reversal of 20117670725533 is 33552707671102.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5814956062084 + 14302714663449 = 2411422^2 + 3781893^2 .

It is a cyclic number.

It is not a de Polignac number, because 20117670725533 - 2⁵ = 20117670725501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20117670725563) 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 3 ways as a sum of consecutive naturals, for example, 543908148 + ... + 543945133.

It is an arithmetic number, because the mean of its divisors is an integer number (5029689649327).

Almost surely, 2^{20117670725533} is an apocalyptic number.

It is an amenable number.

20117670725533 is a deficient number, since it is larger than the sum of its proper divisors (1087871775).

20117670725533 is a wasteful number, since it uses less digits than its factorization.

20117670725533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1087871774.

The product of its (nonzero) digits is 1852200, while the sum is 49.

The spelling of 20117670725533 in words is "twenty trillion, one hundred seventeen billion, six hundred seventy million, seven hundred twenty-five thousand, five hundred thirty-three".