16599918227728 has 40 divisors (see below), whose sum is σ = 35086687120800. Its totient is φ = 7545310640640.

The previous prime is 16599918227597. The next prime is 16599918227729. The reversal of 16599918227728 is 82772281999561.

It is a hoax number, since the sum of its digits (76) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (16599918227729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12552223 + ... + 13811521.

It is an arithmetic number, because the mean of its divisors is an integer number (877167178020).

Almost surely, 2^{16599918227728} is an apocalyptic number.

It is an amenable number.

16599918227728 is an abundant number, since it is smaller than the sum of its proper divisors (18486768893072).

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

16599918227728 is a wasteful number, since it uses less digits than its factorization.

16599918227728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334215 (or 1334209 counting only the distinct ones).

The product of its digits is 548674560, while the sum is 76.

The spelling of 16599918227728 in words is "sixteen trillion, five hundred ninety-nine billion, nine hundred eighteen million, two hundred twenty-seven thousand, seven hundred twenty-eight".