16453663705 has 8 divisors (see below), whose sum is σ = 20116932552. Its totient is φ = 12914573568.

The previous prime is 16453663649. The next prime is 16453663777. The reversal of 16453663705 is 50736635461.

It can be written as a sum of positive squares in 4 ways, for example, as 985269321 + 15468394384 = 31389^2 + 124372^2 .

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 16453663705 - 2³³ = 7863729113 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 31044384 + ... + 31044913.

It is an arithmetic number, because the mean of its divisors is an integer number (2514616569).

Almost surely, 2^16453663705 is an apocalyptic number.

It is an amenable number.

16453663705 is a deficient number, since it is larger than the sum of its proper divisors (3663268847).

16453663705 is an equidigital number, since it uses as much as digits as its factorization.

16453663705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62089355.

The product of its (nonzero) digits is 1360800, while the sum is 46.

The spelling of 16453663705 in words is "sixteen billion, four hundred fifty-three million, six hundred sixty-three thousand, seven hundred five".