11065516550 has 36 divisors (see below), whose sum is σ = 22623049428. Its totient is φ = 4023822000.

The previous prime is 11065516549. The next prime is 11065516559. The reversal of 11065516550 is 5561556011.

It is a self number, because there is not a number n which added to its sum of digits gives 11065516550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11065516559) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 908456 + ... + 920555.

Almost surely, 2^11065516550 is an apocalyptic number.

11065516550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11065516550 is an abundant number, since it is smaller than the sum of its proper divisors (11557532878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11065516550 is a wasteful number, since it uses less digits than its factorization.

11065516550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1829045 (or 1829029 counting only the distinct ones).

The product of its (nonzero) digits is 22500, while the sum is 35.

The spelling of 11065516550 in words is "eleven billion, sixty-five million, five hundred sixteen thousand, five hundred fifty".