16453166999 has 4 divisors (see below), whose sum is σ = 16466687664. Its totient is φ = 16439646336.

The previous prime is 16453166981. The next prime is 16453167011. The reversal of 16453166999 is 99966135461.

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 16453166999 - 2¹⁶ = 16453101463 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 (16453166929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6758507 + ... + 6760940.

It is an arithmetic number, because the mean of its divisors is an integer number (4116671916).

Almost surely, 2^16453166999 is an apocalyptic number.

16453166999 is a deficient number, since it is larger than the sum of its proper divisors (13520665).

16453166999 is a wasteful number, since it uses less digits than its factorization.

16453166999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13520664.

The product of its digits is 9447840, while the sum is 59.

The spelling of 16453166999 in words is "sixteen billion, four hundred fifty-three million, one hundred sixty-six thousand, nine hundred ninety-nine".