16569216009768 has 16 divisors (see below), whose sum is σ = 41423040024480. Its totient is φ = 5523072003248.

The previous prime is 16569216009727. The next prime is 16569216009779. The reversal of 16569216009768 is 86790061296561.

It is a super-4 number, since 4×16569216009768⁴ (a number of 54 digits) contains 4444 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 16569216009699 and 16569216009708.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 345192000180 + ... + 345192000227.

It is an arithmetic number, because the mean of its divisors is an integer number (2588940001530).

Almost surely, 2^{16569216009768} is an apocalyptic number.

It is an amenable number.

16569216009768 is an abundant number, since it is smaller than the sum of its proper divisors (24853824014712).

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

16569216009768 is a wasteful number, since it uses less digits than its factorization.

16569216009768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690384000416 (or 690384000412 counting only the distinct ones).

The product of its (nonzero) digits is 58786560, while the sum is 66.

The spelling of 16569216009768 in words is "sixteen trillion, five hundred sixty-nine billion, two hundred sixteen million, nine thousand, seven hundred sixty-eight".