65680133368 has 16 divisors (see below), whose sum is σ = 123244782480. Its totient is φ = 32814858048.

The previous prime is 65680133359. The next prime is 65680133381. The reversal of 65680133368 is 86333108656.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3140005 + ... + 3160852.

It is an arithmetic number, because the mean of its divisors is an integer number (7702798905).

Almost surely, 2^65680133368 is an apocalyptic number.

It is an amenable number.

65680133368 is a deficient number, since it is larger than the sum of its proper divisors (57564649112).

65680133368 is a wasteful number, since it uses less digits than its factorization.

65680133368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6302166 (or 6302162 counting only the distinct ones).

The product of its (nonzero) digits is 1866240, while the sum is 49.

The spelling of 65680133368 in words is "sixty-five billion, six hundred eighty million, one hundred thirty-three thousand, three hundred sixty-eight".