11520515613426 has 32 divisors (see below), whose sum is σ = 23081738030208. Its totient is φ = 3833388445440.

The previous prime is 11520515613403. The next prime is 11520515613443. The reversal of 11520515613426 is 62431651502511.

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 46582536 + ... + 46829196.

It is an arithmetic number, because the mean of its divisors is an integer number (721304313444).

Almost surely, 2^{11520515613426} is an apocalyptic number.

11520515613426 is an abundant number, since it is smaller than the sum of its proper divisors (11561222416782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11520515613426 is a wasteful number, since it uses less digits than its factorization.

11520515613426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260386.

The product of its (nonzero) digits is 216000, while the sum is 42.

The spelling of 11520515613426 in words is "eleven trillion, five hundred twenty billion, five hundred fifteen million, six hundred thirteen thousand, four hundred twenty-six".