16545262450201 has 4 divisors (see below), whose sum is σ = 16545965062500. Its totient is φ = 16544559837904.

The previous prime is 16545262450181. The next prime is 16545262450219. The reversal of 16545262450201 is 10205426254561.

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 2 ways, for example, as 2219802010000 + 14325460440201 = 1489900^2 + 3784899^2 .

It is a cyclic number.

It is not a de Polignac number, because 16545262450201 - 2¹⁷ = 16545262319129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16545262850201) 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, 351270826 + ... + 351317923.

It is an arithmetic number, because the mean of its divisors is an integer number (4136491265625).

Almost surely, 2^{16545262450201} is an apocalyptic number.

It is an amenable number.

16545262450201 is a deficient number, since it is larger than the sum of its proper divisors (702612299).

16545262450201 is an equidigital number, since it uses as much as digits as its factorization.

16545262450201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 702612298.

The product of its (nonzero) digits is 576000, while the sum is 43.

The spelling of 16545262450201 in words is "sixteen trillion, five hundred forty-five billion, two hundred sixty-two million, four hundred fifty thousand, two hundred one".