11523426663 has 16 divisors (see below), whose sum is σ = 17569379840. Its totient is φ = 6581113056.

The previous prime is 11523426653. The next prime is 11523426701. The reversal of 11523426663 is 36662432511.

It is not a de Polignac number, because 11523426663 - 2⁶ = 11523426599 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 (11523426643) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 115795 + ... + 190932.

It is an arithmetic number, because the mean of its divisors is an integer number (1098086240).

Almost surely, 2^11523426663 is an apocalyptic number.

11523426663 is a deficient number, since it is larger than the sum of its proper divisors (6045953177).

11523426663 is a wasteful number, since it uses less digits than its factorization.

11523426663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308526.

The product of its digits is 155520, while the sum is 39.

The spelling of 11523426663 in words is "eleven billion, five hundred twenty-three million, four hundred twenty-six thousand, six hundred sixty-three".