65668347764 has 24 divisors (see below), whose sum is σ = 115547980800. Its totient is φ = 32655115584.

The previous prime is 65668347763. The next prime is 65668347781. The reversal of 65668347764 is 46774386656.

It is a junction number, because it is equal to n+sod(n) for n = 65668347697 and 65668347706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65668347763) 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, 495437 + ... + 613835.

It is an arithmetic number, because the mean of its divisors is an integer number (4814499200).

Almost surely, 2^65668347764 is an apocalyptic number.

It is an amenable number.

65668347764 is a deficient number, since it is larger than the sum of its proper divisors (49879633036).

65668347764 is a wasteful number, since it uses less digits than its factorization.

65668347764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119159 (or 119157 counting only the distinct ones).

The product of its digits is 121927680, while the sum is 62.

The spelling of 65668347764 in words is "sixty-five billion, six hundred sixty-eight million, three hundred forty-seven thousand, seven hundred sixty-four".