65043463669 has 2 divisors, whose sum is σ = 65043463670. Its totient is φ = 65043463668.

The previous prime is 65043463643. The next prime is 65043463673. The reversal of 65043463669 is 96636434056.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64490602500 + 552861169 = 253950^2 + 23513^2 .

It is a cyclic number.

It is not a de Polignac number, because 65043463669 - 2²⁹ = 64506592757 is a prime.

It is a super-2 number, since 2×65043463669² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65043463619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32521731834 + 32521731835.

It is an arithmetic number, because the mean of its divisors is an integer number (32521731835).

Almost surely, 2^65043463669 is an apocalyptic number.

It is an amenable number.

65043463669 is a deficient number, since it is larger than the sum of its proper divisors (1).

65043463669 is an equidigital number, since it uses as much as digits as its factorization.

65043463669 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8398080, while the sum is 52.

The spelling of 65043463669 in words is "sixty-five billion, forty-three million, four hundred sixty-three thousand, six hundred sixty-nine".