11625421664 has 24 divisors (see below), whose sum is σ = 22904305200. Its totient is φ = 5808455296.

The previous prime is 11625421607. The next prime is 11625421673. The reversal of 11625421664 is 46612452611.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88364 + ... + 176235.

It is an arithmetic number, because the mean of its divisors is an integer number (954346050).

Almost surely, 2^11625421664 is an apocalyptic number.

It is an amenable number.

11625421664 is a deficient number, since it is larger than the sum of its proper divisors (11278883536).

11625421664 is a wasteful number, since it uses less digits than its factorization.

11625421664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265982 (or 265974 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

The spelling of 11625421664 in words is "eleven billion, six hundred twenty-five million, four hundred twenty-one thousand, six hundred sixty-four".