65012115647 has 2 divisors, whose sum is σ = 65012115648. Its totient is φ = 65012115646.

The previous prime is 65012115631. The next prime is 65012115661. The reversal of 65012115647 is 74651121056.

65012115647 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65012115647 - 2⁴ = 65012115631 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 65012115647.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65012115247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32506057823 + 32506057824.

It is an arithmetic number, because the mean of its divisors is an integer number (32506057824).

Almost surely, 2^65012115647 is an apocalyptic number.

65012115647 is a deficient number, since it is larger than the sum of its proper divisors (1).

65012115647 is an equidigital number, since it uses as much as digits as its factorization.

65012115647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 50400, while the sum is 38.

The spelling of 65012115647 in words is "sixty-five billion, twelve million, one hundred fifteen thousand, six hundred forty-seven".