11181582050 has 12 divisors (see below), whose sum is σ = 20797742706. Its totient is φ = 4472632800.

The previous prime is 11181582029. The next prime is 11181582059. The reversal of 11181582050 is 5028518111.

It is a Cunningham number, because it is equal to 105743²+1.

It can be written as a sum of positive squares in 3 ways, for example, as 10304889169 + 876692881 = 101513^2 + 29609^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11181581998 and 11181582016.

It is not an unprimeable number, because it can be changed into a prime (11181582059) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 111815771 + ... + 111815870.

Almost surely, 2^11181582050 is an apocalyptic number.

11181582050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11181582050 is a deficient number, since it is larger than the sum of its proper divisors (9616160656).

11181582050 is a wasteful number, since it uses less digits than its factorization.

11181582050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223631653 (or 223631648 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 32.

The spelling of 11181582050 in words is "eleven billion, one hundred eighty-one million, five hundred eighty-two thousand, fifty".