16453139566 has 8 divisors (see below), whose sum is σ = 25978641480. Its totient is φ = 7793592408.

The previous prime is 16453139561. The next prime is 16453139611. The reversal of 16453139566 is 66593135461.

16453139566 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16453139561) 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, 216488641 + ... + 216488716.

It is an arithmetic number, because the mean of its divisors is an integer number (3247330185).

Almost surely, 2^16453139566 is an apocalyptic number.

16453139566 is a deficient number, since it is larger than the sum of its proper divisors (9525501914).

16453139566 is a wasteful number, since it uses less digits than its factorization.

16453139566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432977378.

The product of its digits is 1749600, while the sum is 49.

The spelling of 16453139566 in words is "sixteen billion, four hundred fifty-three million, one hundred thirty-nine thousand, five hundred sixty-six".