65663464344 has 16 divisors (see below), whose sum is σ = 164158660920. Its totient is φ = 21887821440.

The previous prime is 65663464343. The next prime is 65663464357. The reversal of 65663464344 is 44346436656.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65663464343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1367988817 + ... + 1367988864.

Almost surely, 2^65663464344 is an apocalyptic number.

It is an amenable number.

65663464344 is an abundant number, since it is smaller than the sum of its proper divisors (98495196576).

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

65663464344 is a wasteful number, since it uses less digits than its factorization.

65663464344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2735977690 (or 2735977686 counting only the distinct ones).

The product of its digits is 14929920, while the sum is 51.

The spelling of 65663464344 in words is "sixty-five billion, six hundred sixty-three million, four hundred sixty-four thousand, three hundred forty-four".