16353904985351 has 4 divisors (see below), whose sum is σ = 17315899396272. Its totient is φ = 15391910574432.

The previous prime is 16353904985333. The next prime is 16353904985413. The reversal of 16353904985351 is 15358940935361.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16353904985351 - 2⁶ = 16353904985287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16353904985651) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 480997205435 + ... + 480997205468.

It is an arithmetic number, because the mean of its divisors is an integer number (4328974849068).

Almost surely, 2^{16353904985351} is an apocalyptic number.

16353904985351 is a deficient number, since it is larger than the sum of its proper divisors (961994410921).

16353904985351 is an equidigital number, since it uses as much as digits as its factorization.

16353904985351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961994410920.

The product of its (nonzero) digits is 52488000, while the sum is 62.

The spelling of 16353904985351 in words is "sixteen trillion, three hundred fifty-three billion, nine hundred four million, nine hundred eighty-five thousand, three hundred fifty-one".