16665158416 has 20 divisors (see below), whose sum is σ = 32307344524. Its totient is φ = 8327779200.

The previous prime is 16665158407. The next prime is 16665158453. The reversal of 16665158416 is 61485156661.

It can be written as a sum of positive squares in 2 ways, for example, as 132342016 + 16532816400 = 11504^2 + 128580^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 16665158416.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271275 + ... + 326986.

Almost surely, 2^16665158416 is an apocalyptic number.

16665158416 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

16665158416 is a deficient number, since it is larger than the sum of its proper divisors (15642186108).

16665158416 is a wasteful number, since it uses less digits than its factorization.

16665158416 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600010 (or 600004 counting only the distinct ones).

The product of its digits is 1036800, while the sum is 49.

The spelling of 16665158416 in words is "sixteen billion, six hundred sixty-five million, one hundred fifty-eight thousand, four hundred sixteen".