16181801418 has 8 divisors (see below), whose sum is σ = 32363602848. Its totient is φ = 5393933804.

The previous prime is 16181801417. The next prime is 16181801453. The reversal of 16181801418 is 81410818161.

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

16181801418 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (16181801417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1348483446 + ... + 1348483457.

It is an arithmetic number, because the mean of its divisors is an integer number (4045450356).

Almost surely, 2^16181801418 is an apocalyptic number.

16181801418 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.

16181801418 is a wasteful number, since it uses less digits than its factorization.

16181801418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2696966908.

The product of its (nonzero) digits is 12288, while the sum is 39.

The spelling of 16181801418 in words is "sixteen billion, one hundred eighty-one million, eight hundred one thousand, four hundred eighteen".