11605525243 has 12 divisors (see below), whose sum is σ = 12834319968. Its totient is φ = 10484853600.

The previous prime is 11605525241. The next prime is 11605525247. The reversal of 11605525243 is 34252550611.

It is not a de Polignac number, because 11605525243 - 2¹ = 11605525241 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11605525199 and 11605525208.

It is not an unprimeable number, because it can be changed into a prime (11605525241) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 722608 + ... + 738493.

It is an arithmetic number, because the mean of its divisors is an integer number (1069526664).

Almost surely, 2^11605525243 is an apocalyptic number.

11605525243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11605525243 is a deficient number, since it is larger than the sum of its proper divisors (1228794725).

11605525243 is a wasteful number, since it uses less digits than its factorization.

11605525243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1461174 (or 1461161 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 34.

The spelling of 11605525243 in words is "eleven billion, six hundred five million, five hundred twenty-five thousand, two hundred forty-three".