63665042464340 has 24 divisors (see below), whose sum is σ = 133723016861280. Its totient is φ = 25460983140768.

The previous prime is 63665042464339. The next prime is 63665042464343. The reversal of 63665042464340 is 4346424056636.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63665042464343) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 314511602 + ... + 314713961.

It is an arithmetic number, because the mean of its divisors is an integer number (5571792369220).

Almost surely, 2^{63665042464340} is an apocalyptic number.

It is an amenable number.

63665042464340 is an abundant number, since it is smaller than the sum of its proper divisors (70057974396940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63665042464340 is a wasteful number, since it uses less digits than its factorization.

63665042464340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629230631 (or 629230629 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 53.

The spelling of 63665042464340 in words is "sixty-three trillion, six hundred sixty-five billion, forty-two million, four hundred sixty-four thousand, three hundred forty".