200117556427 has 4 divisors (see below), whose sum is σ = 200684462040. Its totient is φ = 199550650816.

The previous prime is 200117556421. The next prime is 200117556433. The reversal of 200117556427 is 724655711002.

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

It is an interprime number because it is at equal distance from previous prime (200117556421) and next prime (200117556433).

It is a cyclic number.

It is not a de Polignac number, because 200117556427 - 2²⁷ = 199983338699 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 200117556427.

It is not an unprimeable number, because it can be changed into a prime (200117556421) 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, 283452277 + ... + 283452982.

It is an arithmetic number, because the mean of its divisors is an integer number (50171115510).

Almost surely, 2^200117556427 is an apocalyptic number.

200117556427 is a deficient number, since it is larger than the sum of its proper divisors (566905613).

200117556427 is an equidigital number, since it uses as much as digits as its factorization.

200117556427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566905612.

The product of its (nonzero) digits is 117600, while the sum is 40.

The spelling of 200117556427 in words is "two hundred billion, one hundred seventeen million, five hundred fifty-six thousand, four hundred twenty-seven".