11625421663 has 4 divisors (see below), whose sum is σ = 11816002408. Its totient is φ = 11434840920.

The previous prime is 11625421607. The next prime is 11625421673. The reversal of 11625421663 is 36612452611.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11625421663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11625421673) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 95290281 + ... + 95290402.

It is an arithmetic number, because the mean of its divisors is an integer number (2954000602).

Almost surely, 2^11625421663 is an apocalyptic number.

11625421663 is a deficient number, since it is larger than the sum of its proper divisors (190580745).

11625421663 is an equidigital number, since it uses as much as digits as its factorization.

11625421663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190580744.

The product of its digits is 51840, while the sum is 37.

The spelling of 11625421663 in words is "eleven billion, six hundred twenty-five million, four hundred twenty-one thousand, six hundred sixty-three".