11648436651 has 24 divisors (see below), whose sum is σ = 17791912320. Its totient is φ = 7331817600.

The previous prime is 11648436643. The next prime is 11648436689. The reversal of 11648436651 is 15663484611.

11648436651 is a `hidden beast` number, since 1 + 164 + 8 + 436 + 6 + 51 = 666.

11648436651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11648436651 - 2³ = 11648436643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11648436597 and 11648436606.

It is not an unprimeable number, because it can be changed into a prime (11648436851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 497716 + ... + 520593.

It is an arithmetic number, because the mean of its divisors is an integer number (741329680).

Almost surely, 2^11648436651 is an apocalyptic number.

11648436651 is a deficient number, since it is larger than the sum of its proper divisors (6143475669).

11648436651 is a wasteful number, since it uses less digits than its factorization.

11648436651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018387 (or 1018384 counting only the distinct ones).

The product of its digits is 414720, while the sum is 45.

The spelling of 11648436651 in words is "eleven billion, six hundred forty-eight million, four hundred thirty-six thousand, six hundred fifty-one".