11554345642513 has 2 divisors, whose sum is σ = 11554345642514. Its totient is φ = 11554345642512.

The previous prime is 11554345642493. The next prime is 11554345642517. The reversal of 11554345642513 is 31524654345511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11552228906449 + 2116736064 = 3398857^2 + 46008^2 .

It is a cyclic number.

It is not a de Polignac number, because 11554345642513 - 2⁵ = 11554345642481 is a prime.

It is not a weakly prime, because it can be changed into another prime (11554345642517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5777172821256 + 5777172821257.

It is an arithmetic number, because the mean of its divisors is an integer number (5777172821257).

Almost surely, 2^{11554345642513} is an apocalyptic number.

It is an amenable number.

11554345642513 is a deficient number, since it is larger than the sum of its proper divisors (1).

11554345642513 is an equidigital number, since it uses as much as digits as its factorization.

11554345642513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320000, while the sum is 49.

The spelling of 11554345642513 in words is "eleven trillion, five hundred fifty-four billion, three hundred forty-five million, six hundred forty-two thousand, five hundred thirteen".