11543610345 has 16 divisors (see below), whose sum is σ = 18501255360. Its totient is φ = 6146099264.

The previous prime is 11543610329. The next prime is 11543610347. The reversal of 11543610345 is 54301634511.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11543610345 - 2⁴ = 11543610329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11543610347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 646710 + ... + 664319.

It is an arithmetic number, because the mean of its divisors is an integer number (1156328460).

Almost surely, 2^11543610345 is an apocalyptic number.

11543610345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11543610345 is a deficient number, since it is larger than the sum of its proper divisors (6957645015).

11543610345 is a wasteful number, since it uses less digits than its factorization.

11543610345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1311624.

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 11543610345 in words is "eleven billion, five hundred forty-three million, six hundred ten thousand, three hundred forty-five".