18117160373 has 8 divisors (see below), whose sum is σ = 19964527968. Its totient is φ = 16334612784.

The previous prime is 18117160363. The next prime is 18117160387. The reversal of 18117160373 is 37306171181.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18117160373 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 (18117160363) 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 7 ways as a sum of consecutive naturals, for example, 16204415 + ... + 16205532.

It is an arithmetic number, because the mean of its divisors is an integer number (2495565996).

Almost surely, 2^18117160373 is an apocalyptic number.

18117160373 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

18117160373 is a deficient number, since it is larger than the sum of its proper divisors (1847367595).

18117160373 is a wasteful number, since it uses less digits than its factorization.

18117160373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32410003.

The product of its (nonzero) digits is 21168, while the sum is 38.

The spelling of 18117160373 in words is "eighteen billion, one hundred seventeen million, one hundred sixty thousand, three hundred seventy-three".