11554164603431 has 2 divisors, whose sum is σ = 11554164603432. Its totient is φ = 11554164603430.

The previous prime is 11554164603403. The next prime is 11554164603439. The reversal of 11554164603431 is 13430646145511.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11554164603431 - 2³⁸ = 11279286696487 is a prime.

It is a super-2 number, since 2×11554164603431² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11554164603439) by changing a digit.

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 as a sum of consecutive naturals, namely, 5777082301715 + 5777082301716.

It is an arithmetic number, because the mean of its divisors is an integer number (5777082301716).

Almost surely, 2^{11554164603431} is an apocalyptic number.

11554164603431 is a deficient number, since it is larger than the sum of its proper divisors (1).

11554164603431 is an equidigital number, since it uses as much as digits as its factorization.

11554164603431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 518400, while the sum is 44.

The spelling of 11554164603431 in words is "eleven trillion, five hundred fifty-four billion, one hundred sixty-four million, six hundred three thousand, four hundred thirty-one".