11656345636 has 24 divisors (see below), whose sum is σ = 22295611520. Its totient is φ = 5299553952.

The previous prime is 11656345627. The next prime is 11656345639. The reversal of 11656345636 is 63654365611.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (11656345639) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1669356 + ... + 1676323.

Almost surely, 2^11656345636 is an apocalyptic number.

It is an amenable number.

11656345636 is a deficient number, since it is larger than the sum of its proper divisors (10639265884).

11656345636 is a wasteful number, since it uses less digits than its factorization.

11656345636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3345763 (or 3345761 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 46.

The spelling of 11656345636 in words is "eleven billion, six hundred fifty-six million, three hundred forty-five thousand, six hundred thirty-six".