65678860543296 has 1792 divisors, whose sum is σ = 246303275581440. Its totient is φ = 14898029690880.

The previous prime is 65678860543223. The next prime is 65678860543301. The reversal of 65678860543296 is 69234506887656.

It is a Smith number, since the sum of its digits (75) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 106104782475 + ... + 106104783093.

It is an arithmetic number, because the mean of its divisors is an integer number (137446024320).

Almost surely, 2^{65678860543296} is an apocalyptic number.

65678860543296 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65678860543296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123151637790720).

65678860543296 is an abundant number, since it is smaller than the sum of its proper divisors (180624415038144).

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

65678860543296 is a wasteful number, since it uses less digits than its factorization.

65678860543296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1092 (or 1082 counting only the distinct ones).

The product of its (nonzero) digits is 3135283200, while the sum is 75.

The spelling of 65678860543296 in words is "sixty-five trillion, six hundred seventy-eight billion, eight hundred sixty million, five hundred forty-three thousand, two hundred ninety-six".