16396866869361 has 24 divisors (see below), whose sum is σ = 24032303766240. Its totient is φ = 9936819414720.

The previous prime is 16396866869311. The next prime is 16396866869363.

16396866869361 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 16396866869361 - 2¹¹ = 16396866867313 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16396866869363) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3836581 + ... + 6892973.

It is an arithmetic number, because the mean of its divisors is an integer number (1001345990260).

Almost surely, 2^{16396866869361} is an apocalyptic number.

16396866869361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

16396866869361 is a deficient number, since it is larger than the sum of its proper divisors (7635436896879).

16396866869361 is a wasteful number, since it uses less digits than its factorization.

16396866869361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3071197 (or 3071186 counting only the distinct ones).

The product of its digits is 2176782336, while the sum is 78.

The spelling of 16396866869361 in words is "sixteen trillion, three hundred ninety-six billion, eight hundred sixty-six million, eight hundred sixty-nine thousand, three hundred sixty-one".