65628863663 has 6 divisors (see below), whose sum is σ = 72137511432. Its totient is φ = 59662603220.

The previous prime is 65628863633. The next prime is 65628863669. The reversal of 65628863663 is 36636882656.

It is not a de Polignac number, because 65628863663 - 2¹⁶ = 65628798127 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 (65628863669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 271193531 + ... + 271193772.

It is an arithmetic number, because the mean of its divisors is an integer number (12022918572).

Almost surely, 2^65628863663 is an apocalyptic number.

65628863663 is a deficient number, since it is larger than the sum of its proper divisors (6508647769).

65628863663 is a wasteful number, since it uses less digits than its factorization.

65628863663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 542387325 (or 542387314 counting only the distinct ones).

The product of its digits is 44789760, while the sum is 59.

The spelling of 65628863663 in words is "sixty-five billion, six hundred twenty-eight million, eight hundred sixty-three thousand, six hundred sixty-three".