85833843858665 has 16 divisors (see below), whose sum is σ = 124639396797312. Its totient is φ = 55395287464704.

The previous prime is 85833843858641. The next prime is 85833843858667. The reversal of 85833843858665 is 56685834833858.

It is a cyclic number.

It is not a de Polignac number, because 85833843858665 - 2²² = 85833839664361 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 85833843858665.

It is not an unprimeable number, because it can be changed into a prime (85833843858667) 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, 72129279959 + ... + 72129281148.

It is an arithmetic number, because the mean of its divisors is an integer number (7789962299832).

Almost surely, 2^{85833843858665} is an apocalyptic number.

85833843858665 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

It is an amenable number.

85833843858665 is a deficient number, since it is larger than the sum of its proper divisors (38805552938647).

85833843858665 is a wasteful number, since it uses less digits than its factorization.

85833843858665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144258561136.

The product of its digits is 15925248000, while the sum is 80.

The spelling of 85833843858665 in words is "eighty-five trillion, eight hundred thirty-three billion, eight hundred forty-three million, eight hundred fifty-eight thousand, six hundred sixty-five".