11156571164207 has 16 divisors (see below), whose sum is σ = 12852083515392. Its totient is φ = 9486503399520.

The previous prime is 11156571164161. The next prime is 11156571164261. The reversal of 11156571164207 is 70246117565111.

It is not a de Polignac number, because 11156571164207 - 2⁶ = 11156571164143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11156571164407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8082413 + ... + 9361545.

It is an arithmetic number, because the mean of its divisors is an integer number (803255219712).

Almost surely, 2^{11156571164207} is an apocalyptic number.

11156571164207 is a deficient number, since it is larger than the sum of its proper divisors (1695512351185).

11156571164207 is a wasteful number, since it uses less digits than its factorization.

11156571164207 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289078.

The product of its (nonzero) digits is 352800, while the sum is 47.

The spelling of 11156571164207 in words is "eleven trillion, one hundred fifty-six billion, five hundred seventy-one million, one hundred sixty-four thousand, two hundred seven".