1105503680 has 56 divisors (see below), whose sum is σ = 2682191232. Its totient is φ = 433851392.

The previous prime is 1105503673. The next prime is 1105503689. The reversal of 1105503680 is 863055011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1105503689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15632 + ... + 49551.

It is an arithmetic number, because the mean of its divisors is an integer number (47896272).

Almost surely, 2^1105503680 is an apocalyptic number.

1105503680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1105503680 is an abundant number, since it is smaller than the sum of its proper divisors (1576687552).

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

1105503680 is an equidigital number, since it uses as much as digits as its factorization.

1105503680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65253 (or 65243 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 1105503680 is about 33249.1154769567. The cubic root of 1105503680 is about 1033.9988701356.

Adding to 1105503680 its reverse (863055011), we get a palindrome (1968558691).

The spelling of 1105503680 in words is "one billion, one hundred five million, five hundred three thousand, six hundred eighty".