16908816573642 has 96 divisors (see below), whose sum is σ = 40028894236800. Its totient is φ = 4746530517120.

The previous prime is 16908816573599. The next prime is 16908816573667. The reversal of 16908816573642 is 24637561880961.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 15375984 + ... + 16438932.

It is an arithmetic number, because the mean of its divisors is an integer number (416967648300).

It is a 1-persistent number, because it is pandigital, but 2⋅16908816573642 = 33817633147284 is not.

Almost surely, 2^{16908816573642} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16908816573642, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20014447118400).

16908816573642 is an abundant number, since it is smaller than the sum of its proper divisors (23120077663158).

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

16908816573642 is a wasteful number, since it uses less digits than its factorization.

16908816573642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1063916 (or 1063909 counting only the distinct ones).

The product of its (nonzero) digits is 104509440, while the sum is 66.

The spelling of 16908816573642 in words is "sixteen trillion, nine hundred eight billion, eight hundred sixteen million, five hundred seventy-three thousand, six hundred forty-two".