918321161236 has 24 divisors (see below), whose sum is σ = 1608378408000. Its totient is φ = 458784584064.

The previous prime is 918321161179. The next prime is 918321161237. The reversal of 918321161236 is 632161123819.

It is a junction number, because it is equal to n+sod(n) for n = 918321161192 and 918321161201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (918321161237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51182355 + ... + 51200293.

It is an arithmetic number, because the mean of its divisors is an integer number (67015767000).

Almost surely, 2^918321161236 is an apocalyptic number.

It is an amenable number.

918321161236 is a deficient number, since it is larger than the sum of its proper divisors (690057246764).

918321161236 is a wasteful number, since it uses less digits than its factorization.

918321161236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27711 (or 27709 counting only the distinct ones).

The product of its digits is 93312, while the sum is 43.

The spelling of 918321161236 in words is "nine hundred eighteen billion, three hundred twenty-one million, one hundred sixty-one thousand, two hundred thirty-six".