65835956409091 has 16 divisors (see below), whose sum is σ = 71883855750528. Its totient is φ = 59798538115200.

The previous prime is 65835956409053. The next prime is 65835956409101. The reversal of 65835956409091 is 19090465953856.

It is a cyclic number.

It is not a de Polignac number, because 65835956409091 - 2²³ = 65835948020483 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 65835956409091.

It is not an unprimeable number, because it can be changed into a prime (65835956401091) 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, 108131380 + ... + 108738526.

It is an arithmetic number, because the mean of its divisors is an integer number (4492740984408).

Almost surely, 2^{65835956409091} is an apocalyptic number.

65835956409091 is a deficient number, since it is larger than the sum of its proper divisors (6047899341437).

65835956409091 is a wasteful number, since it uses less digits than its factorization.

65835956409091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615762.

The product of its (nonzero) digits is 314928000, while the sum is 70.

The spelling of 65835956409091 in words is "sixty-five trillion, eight hundred thirty-five billion, nine hundred fifty-six million, four hundred nine thousand, ninety-one".