11565654252003 has 80 divisors (see below), whose sum is σ = 18389788971840. Its totient is φ = 7218738745344.

The previous prime is 11565654251989. The next prime is 11565654252013. The reversal of 11565654252003 is 30025245656511.

11565654252003 is a `hidden beast` number, since 1 + 1 + 5 + 6 + 56 + 542 + 52 + 0 + 0 + 3 = 666.

It is not a de Polignac number, because 11565654252003 - 2⁹ = 11565654251491 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11565654252003.

It is not an unprimeable number, because it can be changed into a prime (11565654252013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 203689125 + ... + 203745897.

It is an arithmetic number, because the mean of its divisors is an integer number (229872362148).

Almost surely, 2^{11565654252003} is an apocalyptic number.

11565654252003 is a deficient number, since it is larger than the sum of its proper divisors (6824134719837).

11565654252003 is a wasteful number, since it uses less digits than its factorization.

11565654252003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57578 (or 57569 counting only the distinct ones).

The product of its (nonzero) digits is 1080000, while the sum is 45.

The spelling of 11565654252003 in words is "eleven trillion, five hundred sixty-five billion, six hundred fifty-four million, two hundred fifty-two thousand, three".