11506561041 has 8 divisors (see below), whose sum is σ = 15443685184. Its totient is φ = 7620238800.

The previous prime is 11506560977. The next prime is 11506561091. The reversal of 11506561041 is 14016560511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11506561041 - 2⁶ = 11506560977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11506561091) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12699946 + ... + 12700851.

It is an arithmetic number, because the mean of its divisors is an integer number (1930460648).

Almost surely, 2^11506561041 is an apocalyptic number.

It is an amenable number.

11506561041 is a deficient number, since it is larger than the sum of its proper divisors (3937124143).

11506561041 is a wasteful number, since it uses less digits than its factorization.

11506561041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25400951.

The product of its (nonzero) digits is 3600, while the sum is 30.

The spelling of 11506561041 in words is "eleven billion, five hundred six million, five hundred sixty-one thousand, forty-one".