11553051631345 has 96 divisors (see below), whose sum is σ = 16647974249760. Its totient is φ = 7668519505920.

The previous prime is 11553051631321. The next prime is 11553051631397. The reversal of 11553051631345 is 54313615035511.

It can be written as a sum of positive squares in 16 ways, for example, as 4800204937969 + 6752846693376 = 2190937^2 + 2598624^2 .

It is not a de Polignac number, because 11553051631345 - 2¹⁵ = 11553051598577 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1806007687 + ... + 1806014083.

It is an arithmetic number, because the mean of its divisors is an integer number (173416398435).

Almost surely, 2^{11553051631345} is an apocalyptic number.

It is an amenable number.

11553051631345 is a deficient number, since it is larger than the sum of its proper divisors (5094922618415).

11553051631345 is a wasteful number, since it uses less digits than its factorization.

11553051631345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7443 (or 7436 counting only the distinct ones).

The product of its (nonzero) digits is 405000, while the sum is 43.

Adding to 11553051631345 its reverse (54313615035511), we get a palindrome (65866666666856).

The spelling of 11553051631345 in words is "eleven trillion, five hundred fifty-three billion, fifty-one million, six hundred thirty-one thousand, three hundred forty-five".