11553543534657 has 16 divisors (see below), whose sum is σ = 16311741187392. Its totient is φ = 7248901685760.

The previous prime is 11553543534581. The next prime is 11553543534671. The reversal of 11553543534657 is 75643534535511.

It is not a de Polignac number, because 11553543534657 - 2⁷ = 11553543534529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11553543534597 and 11553543534606.

It is not an unprimeable number, because it can be changed into a prime (11553543533657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4963143 + ... + 6909404.

It is an arithmetic number, because the mean of its divisors is an integer number (1019483824212).

Almost surely, 2^{11553543534657} is an apocalyptic number.

11553543534657 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

11553543534657 is a deficient number, since it is larger than the sum of its proper divisors (4758197652735).

11553543534657 is a wasteful number, since it uses less digits than its factorization.

11553543534657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11891648.

The product of its digits is 56700000, while the sum is 57.

The spelling of 11553543534657 in words is "eleven trillion, five hundred fifty-three billion, five hundred forty-three million, five hundred thirty-four thousand, six hundred fifty-seven".