181141895069 has 16 divisors (see below), whose sum is σ = 191194214400. Its totient is φ = 171141802416.

The previous prime is 181141895059. The next prime is 181141895089. The reversal of 181141895069 is 960598141181.

It is a cyclic number.

It is not a de Polignac number, because 181141895069 - 2³² = 176846927773 is a prime.

It is a super-2 number, since 2×181141895069² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 181141895069.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (181141895029) 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, 26956292 + ... + 26963010.

It is an arithmetic number, because the mean of its divisors is an integer number (11949638400).

Almost surely, 2^181141895069 is an apocalyptic number.

181141895069 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

181141895069 is a deficient number, since it is larger than the sum of its proper divisors (10052319331).

181141895069 is a wasteful number, since it uses less digits than its factorization.

181141895069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10384.

The product of its (nonzero) digits is 622080, while the sum is 53.

The spelling of 181141895069 in words is "one hundred eighty-one billion, one hundred forty-one million, eight hundred ninety-five thousand, sixty-nine".