11660550161 has 8 divisors (see below), whose sum is σ = 12581533440. Its totient is φ = 10742998032.

The previous prime is 11660550151. The next prime is 11660550163. The reversal of 11660550161 is 16105506611.

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

It is not a de Polignac number, because 11660550161 - 2¹⁰ = 11660549137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11660550163) 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, 850721 + ... + 864318.

It is an arithmetic number, because the mean of its divisors is an integer number (1572691680).

Almost surely, 2^11660550161 is an apocalyptic number.

It is an amenable number.

11660550161 is a deficient number, since it is larger than the sum of its proper divisors (920983279).

11660550161 is a wasteful number, since it uses less digits than its factorization.

11660550161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1715575.

The product of its (nonzero) digits is 5400, while the sum is 32.

The spelling of 11660550161 in words is "eleven billion, six hundred sixty million, five hundred fifty thousand, one hundred sixty-one".