11540423345 has 16 divisors (see below), whose sum is σ = 15190943040. Its totient is φ = 8346657600.

The previous prime is 11540423339. The next prime is 11540423369. The reversal of 11540423345 is 54332404511.

It is a de Polignac number, because none of the positive numbers 2^k-11540423345 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 569675 + ... + 589584.

It is an arithmetic number, because the mean of its divisors is an integer number (949433940).

Almost surely, 2^11540423345 is an apocalyptic number.

It is an amenable number.

11540423345 is a deficient number, since it is larger than the sum of its proper divisors (3650519695).

11540423345 is a wasteful number, since it uses less digits than its factorization.

11540423345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1159456.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 11540423345 its reverse (54332404511), we get a palindrome (65872827856).

The spelling of 11540423345 in words is "eleven billion, five hundred forty million, four hundred twenty-three thousand, three hundred forty-five".