18161070208167 has 16 divisors (see below), whose sum is σ = 25002945008640. Its totient is φ = 11713508505600.

The previous prime is 18161070207977. The next prime is 18161070208243. The reversal of 18161070208167 is 76180207016181.

It is not a de Polignac number, because 18161070208167 - 2⁸ = 18161070207911 is a prime.

It is a super-2 number, since 2×18161070208167² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18161070200167) 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 15 ways as a sum of consecutive naturals, for example, 27260634 + ... + 27918887.

It is an arithmetic number, because the mean of its divisors is an integer number (1562684063040).

Almost surely, 2^{18161070208167} is an apocalyptic number.

18161070208167 is a deficient number, since it is larger than the sum of its proper divisors (6841874800473).

18161070208167 is a wasteful number, since it uses less digits than its factorization.

18161070208167 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55183094.

The product of its (nonzero) digits is 225792, while the sum is 48.

The spelling of 18161070208167 in words is "eighteen trillion, one hundred sixty-one billion, seventy million, two hundred eight thousand, one hundred sixty-seven".