16806109453 has 16 divisors (see below), whose sum is σ = 20688592896. Its totient is φ = 13334436720.

The previous prime is 16806109409. The next prime is 16806109511. The reversal of 16806109453 is 35490160861.

It is not a de Polignac number, because 16806109453 - 2⁹ = 16806108941 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 (16806109403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1678651 + ... + 1688632.

It is an arithmetic number, because the mean of its divisors is an integer number (1293037056).

Almost surely, 2^16806109453 is an apocalyptic number.

It is an amenable number.

16806109453 is a deficient number, since it is larger than the sum of its proper divisors (3882483443).

16806109453 is a wasteful number, since it uses less digits than its factorization.

16806109453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3367344.

The product of its (nonzero) digits is 155520, while the sum is 43.

The spelling of 16806109453 in words is "sixteen billion, eight hundred six million, one hundred nine thousand, four hundred fifty-three".