13661357526741 has 16 divisors (see below), whose sum is σ = 18253779969600. Its totient is φ = 9088256513280.

The previous prime is 13661357526731. The next prime is 13661357526799. The reversal of 13661357526741 is 14762575316631.

It is a de Polignac number, because none of the positive numbers 2^k-13661357526741 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13661357526731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17363311 + ... + 18133043.

It is an arithmetic number, because the mean of its divisors is an integer number (1140861248100).

Almost surely, 2^{13661357526741} is an apocalyptic number.

It is an amenable number.

13661357526741 is a deficient number, since it is larger than the sum of its proper divisors (4592422442859).

13661357526741 is a wasteful number, since it uses less digits than its factorization.

13661357526741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782276.

The product of its digits is 19051200, while the sum is 57.

The spelling of 13661357526741 in words is "thirteen trillion, six hundred sixty-one billion, three hundred fifty-seven million, five hundred twenty-six thousand, seven hundred forty-one".