65842646817138 has 32 divisors (see below), whose sum is σ = 131740938438912. Its totient is φ = 21938275630800.

The previous prime is 65842646817137. The next prime is 65842646817151. The reversal of 65842646817138 is 83171864624856.

It is a super-3 number, since 3×65842646817138³ (a number of 42 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (65842646817131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 363257353 + ... + 363438563.

It is an arithmetic number, because the mean of its divisors is an integer number (4116904326216).

Almost surely, 2^{65842646817138} is an apocalyptic number.

65842646817138 is an abundant number, since it is smaller than the sum of its proper divisors (65898291621774).

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

65842646817138 is a wasteful number, since it uses less digits than its factorization.

65842646817138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206470.

The product of its digits is 371589120, while the sum is 69.

The spelling of 65842646817138 in words is "sixty-five trillion, eight hundred forty-two billion, six hundred forty-six million, eight hundred seventeen thousand, one hundred thirty-eight".