11510645545 has 16 divisors (see below), whose sum is σ = 15792622848. Its totient is φ = 7889716800.

The previous prime is 11510645543. The next prime is 11510645551. The reversal of 11510645545 is 54554601511.

It is not a de Polignac number, because 11510645545 - 2¹ = 11510645543 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11510645543) 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, 17820 + ... + 152770.

It is an arithmetic number, because the mean of its divisors is an integer number (987038928).

Almost surely, 2^11510645545 is an apocalyptic number.

It is an amenable number.

11510645545 is a deficient number, since it is larger than the sum of its proper divisors (4281977303).

11510645545 is a wasteful number, since it uses less digits than its factorization.

11510645545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137400.

The product of its (nonzero) digits is 60000, while the sum is 37.

The spelling of 11510645545 in words is "eleven billion, five hundred ten million, six hundred forty-five thousand, five hundred forty-five".