11105101550 has 12 divisors (see below), whose sum is σ = 20655488976. Its totient is φ = 4442040600.

The previous prime is 11105101547. The next prime is 11105101559. The reversal of 11105101550 is 5510150111.

It is a hoax number, since the sum of its digits (20) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11105101559) 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, 111050966 + ... + 111051065.

It is an arithmetic number, because the mean of its divisors is an integer number (1721290748).

Almost surely, 2^11105101550 is an apocalyptic number.

11105101550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11105101550 is a deficient number, since it is larger than the sum of its proper divisors (9550387426).

11105101550 is a wasteful number, since it uses less digits than its factorization.

11105101550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222102043 (or 222102038 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 20.

Adding to 11105101550 its reverse (5510150111), we get a palindrome (16615251661).

The spelling of 11105101550 in words is "eleven billion, one hundred five million, one hundred one thousand, five hundred fifty".