11818898163 has 12 divisors (see below), whose sum is σ = 17704028888. Its totient is φ = 7879265280.

The previous prime is 11818898131. The next prime is 11818898173. The reversal of 11818898163 is 36189881811.

It is a happy number.

It is not a de Polignac number, because 11818898163 - 2⁵ = 11818898131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11818898173) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24318478 + ... + 24318963.

Almost surely, 2^11818898163 is an apocalyptic number.

11818898163 is a deficient number, since it is larger than the sum of its proper divisors (5885130725).

11818898163 is an frugal number, since it uses more digits than its factorization.

11818898163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48637456 (or 48637444 counting only the distinct ones).

The product of its digits is 663552, while the sum is 54.

The spelling of 11818898163 in words is "eleven billion, eight hundred eighteen million, eight hundred ninety-eight thousand, one hundred sixty-three".