11545441510505 has 16 divisors (see below), whose sum is σ = 16765145320320. Its totient is φ = 7451175697152.

The previous prime is 11545441510501. The next prime is 11545441510507. The reversal of 11545441510505 is 50501514454511.

It is a cyclic number.

It is not a de Polignac number, because 11545441510505 - 2² = 11545441510501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11545441510501) 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, 9702051095 + ... + 9702052284.

It is an arithmetic number, because the mean of its divisors is an integer number (1047821582520).

Almost surely, 2^{11545441510505} is an apocalyptic number.

It is an amenable number.

11545441510505 is a deficient number, since it is larger than the sum of its proper divisors (5219703809815).

11545441510505 is a wasteful number, since it uses less digits than its factorization.

11545441510505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19404103408.

The product of its (nonzero) digits is 200000, while the sum is 41.

The spelling of 11545441510505 in words is "eleven trillion, five hundred forty-five billion, four hundred forty-one million, five hundred ten thousand, five hundred five".