1115500311550 has 24 divisors (see below), whose sum is σ = 2076120244800. Its totient is φ = 445922777280.

The previous prime is 1115500311521. The next prime is 1115500311551. The reversal of 1115500311550 is 551130055111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115500311551) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6852430 + ... + 7013329.

It is an arithmetic number, because the mean of its divisors is an integer number (86505010200).

Almost surely, 2^{1115500311550} is an apocalyptic number.

1115500311550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1115500311550 is a deficient number, since it is larger than the sum of its proper divisors (960619933250).

1115500311550 is a wasteful number, since it uses less digits than its factorization.

1115500311550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13867380 (or 13867375 counting only the distinct ones).

The product of its (nonzero) digits is 1875, while the sum is 28.

Adding to 1115500311550 its reverse (551130055111), we get a palindrome (1666630366661).

The spelling of 1115500311550 in words is "one trillion, one hundred fifteen billion, five hundred million, three hundred eleven thousand, five hundred fifty".