11533218050 has 12 divisors (see below), whose sum is σ = 21451785666. Its totient is φ = 4613287200.

The previous prime is 11533218043. The next prime is 11533218071. The reversal of 11533218050 is 5081233511.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 5854239169 + 5678978881 = 76513^2 + 75359^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 115332131 + ... + 115332230.

Almost surely, 2^11533218050 is an apocalyptic number.

11533218050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11533218050 is a deficient number, since it is larger than the sum of its proper divisors (9918567616).

11533218050 is a wasteful number, since it uses less digits than its factorization.

11533218050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230664373 (or 230664368 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 29.

The spelling of 11533218050 in words is "eleven billion, five hundred thirty-three million, two hundred eighteen thousand, fifty".