16719974322018 has 32 divisors (see below), whose sum is σ = 36841131554112. Its totient is φ = 5016493944000.

The previous prime is 16719974321993. The next prime is 16719974322067. The reversal of 16719974322018 is 81022347991761.

16719974322018 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1254116821 + ... + 1254130152.

It is an arithmetic number, because the mean of its divisors is an integer number (1151285361066).

Almost surely, 2^{16719974322018} is an apocalyptic number.

16719974322018 is an abundant number, since it is smaller than the sum of its proper divisors (20121157232094).

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

16719974322018 is a wasteful number, since it uses less digits than its factorization.

16719974322018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2508247090.

The product of its (nonzero) digits is 9144576, while the sum is 60.

The spelling of 16719974322018 in words is "sixteen trillion, seven hundred nineteen billion, nine hundred seventy-four million, three hundred twenty-two thousand, eighteen".