10065509647 has 4 divisors (see below), whose sum is σ = 10075254640. Its totient is φ = 10055764656.

The previous prime is 10065509633. The next prime is 10065509723. The reversal of 10065509647 is 74690556001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74690556001 = 4219 ⋅17703379.

It is a cyclic number.

It is not a de Polignac number, because 10065509647 - 2²⁷ = 9931291919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10065509627) 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, 4870947 + ... + 4873012.

It is an arithmetic number, because the mean of its divisors is an integer number (2518813660).

Almost surely, 2^10065509647 is an apocalyptic number.

10065509647 is a deficient number, since it is larger than the sum of its proper divisors (9744993).

10065509647 is an equidigital number, since it uses as much as digits as its factorization.

10065509647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9744992.

The product of its (nonzero) digits is 226800, while the sum is 43.

The spelling of 10065509647 in words is "ten billion, sixty-five million, five hundred nine thousand, six hundred forty-seven".