16565364445145 has 8 divisors (see below), whose sum is σ = 19965242738760. Its totient is φ = 13194421286400.

The previous prime is 16565364445139. The next prime is 16565364445207. The reversal of 16565364445145 is 54154446356561.

It can be written as a sum of positive squares in 4 ways, for example, as 5100659639296 + 11464704805849 = 2258464^2 + 3385957^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 16565364445145 - 2⁴ = 16565364445129 is a prime.

It is a super-2 number, since 2×16565364445145² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7233782456 + ... + 7233784745.

It is an arithmetic number, because the mean of its divisors is an integer number (2495655342345).

Almost surely, 2^{16565364445145} is an apocalyptic number.

It is an amenable number.

16565364445145 is a deficient number, since it is larger than the sum of its proper divisors (3399878293615).

16565364445145 is a wasteful number, since it uses less digits than its factorization.

16565364445145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14467567435.

The product of its digits is 103680000, while the sum is 59.

The spelling of 16565364445145 in words is "sixteen trillion, five hundred sixty-five billion, three hundred sixty-four million, four hundred forty-five thousand, one hundred forty-five".