65822857643 has 2 divisors, whose sum is σ = 65822857644. Its totient is φ = 65822857642.

The previous prime is 65822857631. The next prime is 65822857663. The reversal of 65822857643 is 34675822856.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65822857643 - 2¹⁶ = 65822792107 is a prime.

It is not a weakly prime, because it can be changed into another prime (65822857663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32911428821 + 32911428822.

It is an arithmetic number, because the mean of its divisors is an integer number (32911428822).

Almost surely, 2^65822857643 is an apocalyptic number.

65822857643 is a deficient number, since it is larger than the sum of its proper divisors (1).

65822857643 is an equidigital number, since it uses as much as digits as its factorization.

65822857643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19353600, while the sum is 56.

The spelling of 65822857643 in words is "sixty-five billion, eight hundred twenty-two million, eight hundred fifty-seven thousand, six hundred forty-three".