11663702741 has 4 divisors (see below), whose sum is σ = 11669386092. Its totient is φ = 11658019392.

The previous prime is 11663702717. The next prime is 11663702747. The reversal of 11663702741 is 14720736611.

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 3705278641 + 7958424100 = 60871^2 + 89210^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11663702741 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11663702695 and 11663702704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11663702747) 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, 2838596 + ... + 2842701.

It is an arithmetic number, because the mean of its divisors is an integer number (2917346523).

Almost surely, 2^11663702741 is an apocalyptic number.

It is an amenable number.

11663702741 is a deficient number, since it is larger than the sum of its proper divisors (5683351).

11663702741 is an equidigital number, since it uses as much as digits as its factorization.

11663702741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5683350.

The product of its (nonzero) digits is 42336, while the sum is 38.

The spelling of 11663702741 in words is "eleven billion, six hundred sixty-three million, seven hundred two thousand, seven hundred forty-one".