16010645065 has 8 divisors (see below), whose sum is σ = 19475963208. Its totient is φ = 12633056640.

The previous prime is 16010645059. The next prime is 16010645071. The reversal of 16010645065 is 56054601061.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (16010645059) and next prime (16010645071).

It can be written as a sum of positive squares in 4 ways, for example, as 1341317376 + 14669327689 = 36624^2 + 121117^2 .

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

It is not a de Polignac number, because 16010645065 - 2¹⁵ = 16010612297 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 16010645065.

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, 21932026 + ... + 21932755.

It is an arithmetic number, because the mean of its divisors is an integer number (2434495401).

Almost surely, 2^16010645065 is an apocalyptic number.

It is an amenable number.

16010645065 is a deficient number, since it is larger than the sum of its proper divisors (3465318143).

16010645065 is an equidigital number, since it uses as much as digits as its factorization.

16010645065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43864859.

The product of its (nonzero) digits is 21600, while the sum is 34.

The spelling of 16010645065 in words is "sixteen billion, ten million, six hundred forty-five thousand, sixty-five".