11043165456 has 100 divisors (see below), whose sum is σ = 33842317212. Its totient is φ = 3464515584.

The previous prime is 11043165451. The next prime is 11043165487. The reversal of 11043165456 is 65456134011.

11043165456 is a `hidden beast` number, since 1 + 1 + 0 + 43 + 165 + 456 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8660163600 + 2383001856 = 93060^2 + 48816^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 11043165456.

It is not an unprimeable number, because it can be changed into a prime (11043165451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 228585 + ... + 272648.

Almost surely, 2^11043165456 is an apocalyptic number.

11043165456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

11043165456 is an abundant number, since it is smaller than the sum of its proper divisors (22799151756).

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

11043165456 is a wasteful number, since it uses less digits than its factorization.

11043165456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501270 (or 501255 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

Adding to 11043165456 its reverse (65456134011), we get a palindrome (76499299467).

The spelling of 11043165456 in words is "eleven billion, forty-three million, one hundred sixty-five thousand, four hundred fifty-six".