11657883338765 has 4 divisors (see below), whose sum is σ = 13989460006524. Its totient is φ = 9326306671008.

The previous prime is 11657883338741. The next prime is 11657883338767. The reversal of 11657883338765 is 56783338875611.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1576375669444 + 10081507669321 = 1255538^2 + 3175139^2 .

It is a cyclic number.

It is not a de Polignac number, because 11657883338765 - 2¹⁰ = 11657883337741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11657883338767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1165788333872 + ... + 1165788333881.

It is an arithmetic number, because the mean of its divisors is an integer number (3497365001631).

Almost surely, 2^{11657883338765} is an apocalyptic number.

It is an amenable number.

11657883338765 is a deficient number, since it is larger than the sum of its proper divisors (2331576667759).

11657883338765 is an equidigital number, since it uses as much as digits as its factorization.

11657883338765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2331576667758.

The product of its digits is 609638400, while the sum is 71.

The spelling of 11657883338765 in words is "eleven trillion, six hundred fifty-seven billion, eight hundred eighty-three million, three hundred thirty-eight thousand, seven hundred sixty-five".