11072120550 has 24 divisors (see below), whose sum is σ = 27458859336. Its totient is φ = 2952565440.

The previous prime is 11072120539. The next prime is 11072120557. The reversal of 11072120550 is 5502127011.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11072120550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11072120557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36906919 + ... + 36907218.

It is an arithmetic number, because the mean of its divisors is an integer number (1144119139).

Almost surely, 2^11072120550 is an apocalyptic number.

11072120550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11072120550 is an abundant number, since it is smaller than the sum of its proper divisors (16386738786).

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

11072120550 is a wasteful number, since it uses less digits than its factorization.

11072120550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73814152 (or 73814147 counting only the distinct ones).

The product of its (nonzero) digits is 700, while the sum is 24.

Adding to 11072120550 its reverse (5502127011), we get a palindrome (16574247561).

The spelling of 11072120550 in words is "eleven billion, seventy-two million, one hundred twenty thousand, five hundred fifty".