11554506452645 has 16 divisors (see below), whose sum is σ = 14985116303472. Its totient is φ = 8502193620480.

The previous prime is 11554506452639. The next prime is 11554506452677. The reversal of 11554506452645 is 54625460545511.

It can be written as a sum of positive squares in 8 ways, for example, as 82459716964 + 11472046735681 = 287158^2 + 3387041^2 .

It is not a de Polignac number, because 11554506452645 - 2¹⁸ = 11554506190501 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 316283582 + ... + 316320111.

It is an arithmetic number, because the mean of its divisors is an integer number (936569768967).

Almost surely, 2^{11554506452645} is an apocalyptic number.

It is an amenable number.

11554506452645 is a deficient number, since it is larger than the sum of its proper divisors (3430609850827).

11554506452645 is a wasteful number, since it uses less digits than its factorization.

11554506452645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 632603992.

The product of its (nonzero) digits is 14400000, while the sum is 53.

The spelling of 11554506452645 in words is "eleven trillion, five hundred fifty-four billion, five hundred six million, four hundred fifty-two thousand, six hundred forty-five".