16181355018 has 8 divisors (see below), whose sum is σ = 32362710048. Its totient is φ = 5393785004.

The previous prime is 16181355017. The next prime is 16181355049. The reversal of 16181355018 is 81055318161.

16181355018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

16181355018 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (16181355013) 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 3 ways as a sum of consecutive naturals, for example, 1348446246 + ... + 1348446257.

It is an arithmetic number, because the mean of its divisors is an integer number (4045338756).

Almost surely, 2^16181355018 is an apocalyptic number.

16181355018 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16181355018 is a wasteful number, since it uses less digits than its factorization.

16181355018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2696892508.

The product of its (nonzero) digits is 28800, while the sum is 39.

The spelling of 16181355018 in words is "sixteen billion, one hundred eighty-one million, three hundred fifty-five thousand, eighteen".