1105243664 has 40 divisors (see below), whose sum is σ = 2465223168. Its totient is φ = 470211840.

The previous prime is 1105243649. The next prime is 1105243693. The reversal of 1105243664 is 4663425011.

It is a self number, because there is not a number n which added to its sum of digits gives 1105243664.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20672 + ... + 51359.

Almost surely, 2^1105243664 is an apocalyptic number.

1105243664 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1105243664 is an abundant number, since it is smaller than the sum of its proper divisors (1359979504).

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

1105243664 is a wasteful number, since it uses less digits than its factorization.

1105243664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72183 (or 72177 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The square root of 1105243664 is about 33245.2051279579. The cubic root of 1105243664 is about 1033.9177977893.

Adding to 1105243664 its reverse (4663425011), we get a palindrome (5768668675).

The spelling of 1105243664 in words is "one billion, one hundred five million, two hundred forty-three thousand, six hundred sixty-four".