16453745315665 has 16 divisors (see below), whose sum is σ = 22935056705280. Its totient is φ = 11097608080320.

The previous prime is 16453745315647. The next prime is 16453745315669. The reversal of 16453745315665 is 56651354735461.

It is not a de Polignac number, because 16453745315665 - 2⁷ = 16453745315537 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is not an unprimeable number, because it can be changed into a prime (16453745315669) 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, 3853334005 + ... + 3853338274.

It is an arithmetic number, because the mean of its divisors is an integer number (1433441044080).

Almost surely, 2^{16453745315665} is an apocalyptic number.

It is an amenable number.

16453745315665 is a deficient number, since it is larger than the sum of its proper divisors (6481311389615).

16453745315665 is an equidigital number, since it uses as much as digits as its factorization.

16453745315665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7706672352.

The product of its digits is 136080000, while the sum is 61.

The spelling of 16453745315665 in words is "sixteen trillion, four hundred fifty-three billion, seven hundred forty-five million, three hundred fifteen thousand, six hundred sixty-five".