11654891601 has 16 divisors (see below), whose sum is σ = 15652396800. Its totient is φ = 7713712640.

The previous prime is 11654891579. The next prime is 11654891653. The reversal of 11654891601 is 10619845611.

It is a happy number.

11654891601 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11654891601 - 2¹¹ = 11654889553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11654890601) 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 15 ways as a sum of consecutive naturals, for example, 1010296 + ... + 1021766.

It is an arithmetic number, because the mean of its divisors is an integer number (978274800).

Almost surely, 2^11654891601 is an apocalyptic number.

It is an amenable number.

11654891601 is a deficient number, since it is larger than the sum of its proper divisors (3997505199).

11654891601 is a wasteful number, since it uses less digits than its factorization.

11654891601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13896.

The product of its (nonzero) digits is 51840, while the sum is 42.

The spelling of 11654891601 in words is "eleven billion, six hundred fifty-four million, eight hundred ninety-one thousand, six hundred one".