11653144641 has 12 divisors (see below), whose sum is σ = 16834144080. Its totient is φ = 7767921240.

The previous prime is 11653144637. The next prime is 11653144651. The reversal of 11653144641 is 14644135611.

11653144641 is a `hidden beast` number, since 1 + 1 + 6 + 5 + 3 + 1 + 4 + 4 + 641 = 666.

It is not a de Polignac number, because 11653144641 - 2² = 11653144637 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11653144596 and 11653144605.

It is not an unprimeable number, because it can be changed into a prime (11653144651) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24190 + ... + 154568.

It is an arithmetic number, because the mean of its divisors is an integer number (1402845340).

Almost surely, 2^11653144641 is an apocalyptic number.

It is an amenable number.

11653144641 is a deficient number, since it is larger than the sum of its proper divisors (5180999439).

11653144641 is a wasteful number, since it uses less digits than its factorization.

11653144641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140316 (or 140313 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The spelling of 11653144641 in words is "eleven billion, six hundred fifty-three million, one hundred forty-four thousand, six hundred forty-one".