16026534065 has 4 divisors (see below), whose sum is σ = 19231840884. Its totient is φ = 12821227248.

The previous prime is 16026534061. The next prime is 16026534071. The reversal of 16026534065 is 56043562061.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 56043562061 = 149 ⋅376131289.

It can be written as a sum of positive squares in 2 ways, for example, as 7822341136 + 8204192929 = 88444^2 + 90577^2 .

It is a cyclic number.

It is not a de Polignac number, because 16026534065 - 2² = 16026534061 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16026534061) 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, 1602653402 + ... + 1602653411.

It is an arithmetic number, because the mean of its divisors is an integer number (4807960221).

Almost surely, 2^16026534065 is an apocalyptic number.

It is an amenable number.

16026534065 is a deficient number, since it is larger than the sum of its proper divisors (3205306819).

16026534065 is an equidigital number, since it uses as much as digits as its factorization.

16026534065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3205306818.

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 16026534065 in words is "sixteen billion, twenty-six million, five hundred thirty-four thousand, sixty-five".