911161858161 has 8 divisors (see below), whose sum is σ = 1214923338720. Its totient is φ = 607420808192.

The previous prime is 911161858133. The next prime is 911161858181. The reversal of 911161858161 is 161858161119.

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

It is a cyclic number.

It is not a de Polignac number, because 911161858161 - 2⁵ = 911161858129 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 911161858161.

It is not an unprimeable number, because it can be changed into a prime (911161858181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5003280 + ... + 5182193.

It is an arithmetic number, because the mean of its divisors is an integer number (151865417340).

Almost surely, 2^911161858161 is an apocalyptic number.

It is an amenable number.

911161858161 is a deficient number, since it is larger than the sum of its proper divisors (303761480559).

911161858161 is a wasteful number, since it uses less digits than its factorization.

911161858161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10215295.

The product of its digits is 103680, while the sum is 48.

The spelling of 911161858161 in words is "nine hundred eleven billion, one hundred sixty-one million, eight hundred fifty-eight thousand, one hundred sixty-one".