11532131515545 has 64 divisors (see below), whose sum is σ = 20387181993984. Its totient is φ = 5536732974080.

The previous prime is 11532131515519. The next prime is 11532131515577. The reversal of 11532131515545 is 54551513123511.

It is not a de Polignac number, because 11532131515545 - 2⁶ = 11532131515481 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11532131515497 and 11532131515506.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 187596484 + ... + 187657946.

It is an arithmetic number, because the mean of its divisors is an integer number (318549718656).

Almost surely, 2^{11532131515545} is an apocalyptic number.

11532131515545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11532131515545 is a deficient number, since it is larger than the sum of its proper divisors (8855050478439).

11532131515545 is a wasteful number, since it uses less digits than its factorization.

11532131515545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 93502.

The product of its digits is 225000, while the sum is 42.

The spelling of 11532131515545 in words is "eleven trillion, five hundred thirty-two billion, one hundred thirty-one million, five hundred fifteen thousand, five hundred forty-five".