16455346321 has 8 divisors (see below), whose sum is σ = 17492918400. Its totient is φ = 15434924400.

The previous prime is 16455346291. The next prime is 16455346331. The reversal of 16455346321 is 12364355461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 16455346321 - 2⁵ = 16455346289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16455346331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4285561 + ... + 4289398.

It is an arithmetic number, because the mean of its divisors is an integer number (2186614800).

Almost surely, 2^16455346321 is an apocalyptic number.

It is an amenable number.

16455346321 is a deficient number, since it is larger than the sum of its proper divisors (1037572079).

16455346321 is a wasteful number, since it uses less digits than its factorization.

16455346321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8575079.

The product of its digits is 259200, while the sum is 40.

The spelling of 16455346321 in words is "sixteen billion, four hundred fifty-five million, three hundred forty-six thousand, three hundred twenty-one".