16745363953 has 4 divisors (see below), whose sum is σ = 17730385380. Its totient is φ = 15760342528.

The previous prime is 16745363927. The next prime is 16745363977. The reversal of 16745363953 is 35936354761.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15520923889 + 1224440064 = 124583^2 + 34992^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16745363953 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 16745363953.

It is not an unprimeable number, because it can be changed into a prime (16745363053) 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, 492510688 + ... + 492510721.

It is an arithmetic number, because the mean of its divisors is an integer number (4432596345).

Almost surely, 2^16745363953 is an apocalyptic number.

It is an amenable number.

16745363953 is a deficient number, since it is larger than the sum of its proper divisors (985021427).

16745363953 is an equidigital number, since it uses as much as digits as its factorization.

16745363953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985021426.

The product of its digits is 6123600, while the sum is 52.

The spelling of 16745363953 in words is "sixteen billion, seven hundred forty-five million, three hundred sixty-three thousand, nine hundred fifty-three".