201116506603 has 4 divisors (see below), whose sum is σ = 203539597128. Its totient is φ = 198693416080.

The previous prime is 201116506601. The next prime is 201116506649. The reversal of 201116506603 is 306605611102.

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

It is a cyclic number.

It is not a de Polignac number, because 201116506603 - 2¹ = 201116506601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (201116506601) 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, 1211545138 + ... + 1211545303.

It is an arithmetic number, because the mean of its divisors is an integer number (50884899282).

Almost surely, 2^201116506603 is an apocalyptic number.

201116506603 is a deficient number, since it is larger than the sum of its proper divisors (2423090525).

201116506603 is an equidigital number, since it uses as much as digits as its factorization.

201116506603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2423090524.

The product of its (nonzero) digits is 6480, while the sum is 31.

The spelling of 201116506603 in words is "two hundred one billion, one hundred sixteen million, five hundred six thousand, six hundred three".