2065613799168 has 720 divisors, whose sum is σ = 6587286773760. Its totient is φ = 642398625792.

The previous prime is 2065613799157. The next prime is 2065613799181. The reversal of 2065613799168 is 8619973165602.

2065613799168 is a `hidden beast` number, since 2 + 0 + 6 + 5 + 613 + 7 + 9 + 9 + 1 + 6 + 8 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 4058180098 + ... + 4058180606.

It is an arithmetic number, because the mean of its divisors is an integer number (9149009408).

Almost surely, 2^{2065613799168} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2065613799168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3293643386880).

2065613799168 is an abundant number, since it is smaller than the sum of its proper divisors (4521672974592).

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

2065613799168 is a wasteful number, since it uses less digits than its factorization.

2065613799168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 754 (or 731 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 63.

The spelling of 2065613799168 in words is "two trillion, sixty-five billion, six hundred thirteen million, seven hundred ninety-nine thousand, one hundred sixty-eight".