16516668335 has 4 divisors (see below), whose sum is σ = 19820002008. Its totient is φ = 13213334664.

The previous prime is 16516668319. The next prime is 16516668347. The reversal of 16516668335 is 53386661561.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 53386661561 = 809 ⋅65990929.

It is a cyclic number.

It is not a de Polignac number, because 16516668335 - 2⁴ = 16516668319 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 1651666829 + ... + 1651666838.

It is an arithmetic number, because the mean of its divisors is an integer number (4955000502).

Almost surely, 2^16516668335 is an apocalyptic number.

16516668335 is a deficient number, since it is larger than the sum of its proper divisors (3303333673).

16516668335 is an equidigital number, since it uses as much as digits as its factorization.

16516668335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3303333672.

The product of its digits is 2332800, while the sum is 50.

The spelling of 16516668335 in words is "sixteen billion, five hundred sixteen million, six hundred sixty-eight thousand, three hundred thirty-five".