11544205252401 has 6 divisors (see below), whose sum is σ = 16674963142370. Its totient is φ = 7696136834928.

The previous prime is 11544205252397. The next prime is 11544205252409. The reversal of 11544205252401 is 10425250244511.

11544205252401 is a `hidden beast` number, since 1 + 1 + 5 + 44 + 205 + 2 + 5 + 2 + 401 = 666.

It can be written as a sum of positive squares in only one way, i.e., 10135461773376 + 1408743479025 = 3183624^2 + 1186905^2 .

It is not a de Polignac number, because 11544205252401 - 2² = 11544205252397 is a prime.

It is a super-2 number, since 2×11544205252401² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11544205252409) 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 5 ways as a sum of consecutive naturals, for example, 641344736236 + ... + 641344736253.

Almost surely, 2^{11544205252401} is an apocalyptic number.

It is an amenable number.

11544205252401 is a deficient number, since it is larger than the sum of its proper divisors (5130757889969).

11544205252401 is a wasteful number, since it uses less digits than its factorization.

11544205252401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1282689472495 (or 1282689472492 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 36.

Adding to 11544205252401 its reverse (10425250244511), we get a palindrome (21969455496912).

The spelling of 11544205252401 in words is "eleven trillion, five hundred forty-four billion, two hundred five million, two hundred fifty-two thousand, four hundred one".