65368569693378 has 96 divisors (see below), whose sum is σ = 155416181760000. Its totient is φ = 18267774237216.

The previous prime is 65368569693373. The next prime is 65368569693379. The reversal of 65368569693378 is 87339696586356.

It is a self number, because there is not a number n which added to its sum of digits gives 65368569693378.

It is not an unprimeable number, because it can be changed into a prime (65368569693373) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20320623 + ... + 23316621.

It is an arithmetic number, because the mean of its divisors is an integer number (1618918560000).

Almost surely, 2^{65368569693378} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65368569693378, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77708090880000).

65368569693378 is an abundant number, since it is smaller than the sum of its proper divisors (90047612066622).

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

65368569693378 is a wasteful number, since it uses less digits than its factorization.

65368569693378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2997644 (or 2997637 counting only the distinct ones).

The product of its digits is 31744742400, while the sum is 84.

The spelling of 65368569693378 in words is "sixty-five trillion, three hundred sixty-eight billion, five hundred sixty-nine million, six hundred ninety-three thousand, three hundred seventy-eight".