11550553161247 has 4 divisors (see below), whose sum is σ = 11550565140520. Its totient is φ = 11550541181976.

The previous prime is 11550553161151. The next prime is 11550553161307. The reversal of 11550553161247 is 74216135505511.

11550553161247 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11550553161247 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11550553161197 and 11550553161206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11550553165247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4403268 + ... + 6518425.

It is an arithmetic number, because the mean of its divisors is an integer number (2887641285130).

Almost surely, 2^{11550553161247} is an apocalyptic number.

11550553161247 is a deficient number, since it is larger than the sum of its proper divisors (11979273).

11550553161247 is a wasteful number, since it uses less digits than its factorization.

11550553161247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11979272.

The product of its (nonzero) digits is 630000, while the sum is 46.

Adding to 11550553161247 its reverse (74216135505511), we get a palindrome (85766688666758).

The spelling of 11550553161247 in words is "eleven trillion, five hundred fifty billion, five hundred fifty-three million, one hundred sixty-one thousand, two hundred forty-seven".