11006645640161 has 4 divisors (see below), whose sum is σ = 11007749958912. Its totient is φ = 11005541321412.

The previous prime is 11006645640121. The next prime is 11006645640169. The reversal of 11006645640161 is 16104654660011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11006645640161 - 2²⁶ = 11006578531297 is a prime.

It is a super-2 number, since 2×11006645640161² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11006645640169) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 552144425 + ... + 552164358.

It is an arithmetic number, because the mean of its divisors is an integer number (2751937489728).

Almost surely, 2^{11006645640161} is an apocalyptic number.

It is an amenable number.

11006645640161 is a deficient number, since it is larger than the sum of its proper divisors (1104318751).

11006645640161 is an equidigital number, since it uses as much as digits as its factorization.

11006645640161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104318750.

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 11006645640161 in words is "eleven trillion, six billion, six hundred forty-five million, six hundred forty thousand, one hundred sixty-one".