16697085531776 has 128 divisors (see below), whose sum is σ = 37627534506240. Its totient is φ = 7322469580800.

The previous prime is 16697085531767. The next prime is 16697085531781. The reversal of 16697085531776 is 67713558079661.

It is a tau number, because it is divible by the number of its divisors (128).

It is a super-4 number, since 4×16697085531776⁴ (a number of 54 digits) contains 4444 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4334456 + ... + 7223688.

It is an arithmetic number, because the mean of its divisors is an integer number (293965113330).

Almost surely, 2^{16697085531776} is an apocalyptic number.

16697085531776 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 16697085531776, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18813767253120).

16697085531776 is an abundant number, since it is smaller than the sum of its proper divisors (20930448974464).

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

16697085531776 is a wasteful number, since it uses less digits than its factorization.

16697085531776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2889434 (or 2889422 counting only the distinct ones).

The product of its (nonzero) digits is 400075200, while the sum is 71.

The spelling of 16697085531776 in words is "sixteen trillion, six hundred ninety-seven billion, eighty-five million, five hundred thirty-one thousand, seven hundred seventy-six".