11663111674 has 8 divisors (see below), whose sum is σ = 17622366228. Its totient is φ = 5788989600.

The previous prime is 11663111671. The next prime is 11663111689. The reversal of 11663111674 is 47611136611.

It can be written as a sum of positive squares in 2 ways, for example, as 10887879025 + 775232649 = 104345^2 + 27843^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (11663111671) 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, 21282777 + ... + 21283324.

Almost surely, 2^11663111674 is an apocalyptic number.

11663111674 is a deficient number, since it is larger than the sum of its proper divisors (5959254554).

11663111674 is a wasteful number, since it uses less digits than its factorization.

11663111674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42566240.

The product of its digits is 18144, while the sum is 37.

The spelling of 11663111674 in words is "eleven billion, six hundred sixty-three million, one hundred eleven thousand, six hundred seventy-four".