16545723552346 has 4 divisors (see below), whose sum is σ = 24818585328522. Its totient is φ = 8272861776172.

The previous prime is 16545723552343. The next prime is 16545723552431. The reversal of 16545723552346 is 64325532754561.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 13698030177225 + 2847693375121 = 3701085^2 + 1687511^2 .

It is not an unprimeable number, because it can be changed into a prime (16545723552343) by changing a digit.

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 as a sum of consecutive naturals, namely, 4136430888085 + ... + 4136430888088.

Almost surely, 2^{16545723552346} is an apocalyptic number.

16545723552346 is a deficient number, since it is larger than the sum of its proper divisors (8272861776176).

16545723552346 is an equidigital number, since it uses as much as digits as its factorization.

16545723552346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8272861776175.

The product of its digits is 90720000, while the sum is 58.

The spelling of 16545723552346 in words is "sixteen trillion, five hundred forty-five billion, seven hundred twenty-three million, five hundred fifty-two thousand, three hundred forty-six".