200117772617 has 4 divisors (see below), whose sum is σ = 228706025856. Its totient is φ = 171529519380.

The previous prime is 200117772607. The next prime is 200117772661. The reversal of 200117772617 is 716277711002.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 200117772617 - 2¹⁴ = 200117756233 is a prime.

It is not an unprimeable number, because it can be changed into a prime (200117772607) 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, 14294126609 + ... + 14294126622.

It is an arithmetic number, because the mean of its divisors is an integer number (57176506464).

Almost surely, 2^200117772617 is an apocalyptic number.

It is an amenable number.

200117772617 is a deficient number, since it is larger than the sum of its proper divisors (28588253239).

200117772617 is an equidigital number, since it uses as much as digits as its factorization.

200117772617 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28588253238.

The product of its (nonzero) digits is 57624, while the sum is 41.

The spelling of 200117772617 in words is "two hundred billion, one hundred seventeen million, seven hundred seventy-two thousand, six hundred seventeen".