18063141161 has 12 divisors (see below), whose sum is σ = 19498202892. Its totient is φ = 16634683008.

The previous prime is 18063141157. The next prime is 18063141197. The reversal of 18063141161 is 16114136081.

It can be written as a sum of positive squares in 6 ways, for example, as 183439936 + 17879701225 = 13544^2 + 133715^2 .

It is not a de Polignac number, because 18063141161 - 2² = 18063141157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18063141961) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2711711 + ... + 2718363.

It is an arithmetic number, because the mean of its divisors is an integer number (1624850241).

Almost surely, 2^18063141161 is an apocalyptic number.

It is an amenable number.

18063141161 is a deficient number, since it is larger than the sum of its proper divisors (1435061731).

18063141161 is an frugal number, since it uses more digits than its factorization.

18063141161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7580 (or 7123 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 32.

The spelling of 18063141161 in words is "eighteen billion, sixty-three million, one hundred forty-one thousand, one hundred sixty-one".