16565969109196 has 24 divisors (see below), whose sum is σ = 31749640932240. Its totient is φ = 7516241524032.

The previous prime is 16565969109089. The next prime is 16565969109199. The reversal of 16565969109196 is 69190196956561.

It is a super-2 number, since 2×16565969109196² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (16565969109199) 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, 2699796331 + ... + 2699802466.

It is an arithmetic number, because the mean of its divisors is an integer number (1322901705510).

Almost surely, 2^{16565969109196} is an apocalyptic number.

It is an amenable number.

16565969109196 is a deficient number, since it is larger than the sum of its proper divisors (15183671823044).

16565969109196 is a wasteful number, since it uses less digits than its factorization.

16565969109196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5399598873 (or 5399598871 counting only the distinct ones).

The product of its (nonzero) digits is 212576400, while the sum is 73.

The spelling of 16565969109196 in words is "sixteen trillion, five hundred sixty-five billion, nine hundred sixty-nine million, one hundred nine thousand, one hundred ninety-six".