20117514752207 has 4 divisors (see below), whose sum is σ = 20117524563960. Its totient is φ = 20117504940456.

The previous prime is 20117514752161. The next prime is 20117514752213. The reversal of 20117514752207 is 70225741571102.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20117514752207 - 2¹⁸ = 20117514490063 is a prime.

It is a super-2 number, since 2×20117514752207² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20117514752287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 528293 + ... + 6365070.

It is an arithmetic number, because the mean of its divisors is an integer number (5029381140990).

Almost surely, 2^{20117514752207} is an apocalyptic number.

20117514752207 is a deficient number, since it is larger than the sum of its proper divisors (9811753).

20117514752207 is an equidigital number, since it uses as much as digits as its factorization.

20117514752207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9811752.

The product of its (nonzero) digits is 274400, while the sum is 44.

The spelling of 20117514752207 in words is "twenty trillion, one hundred seventeen billion, five hundred fourteen million, seven hundred fifty-two thousand, two hundred seven".