65834650368381 has 8 divisors (see below), whose sum is σ = 87779633369344. Its totient is φ = 43889717139840.

The previous prime is 65834650368373. The next prime is 65834650368413. The reversal of 65834650368381 is 18386305643856.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65834650368381 - 2³ = 65834650368373 is a prime.

It is a super-2 number, since 2×65834650368381² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65834650348381) 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, 9238900 + ... + 14731821.

It is an arithmetic number, because the mean of its divisors is an integer number (10972454171168).

Almost surely, 2^{65834650368381} is an apocalyptic number.

It is an amenable number.

65834650368381 is a deficient number, since it is larger than the sum of its proper divisors (21944983000963).

65834650368381 is a wasteful number, since it uses less digits than its factorization.

65834650368381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24886211.

The product of its (nonzero) digits is 298598400, while the sum is 66.

The spelling of 65834650368381 in words is "sixty-five trillion, eight hundred thirty-four billion, six hundred fifty million, three hundred sixty-eight thousand, three hundred eighty-one".