85836235433665 has 8 divisors (see below), whose sum is σ = 104023318981608. Its totient is φ = 67989097372800.

The previous prime is 85836235433657. The next prime is 85836235433719. The reversal of 85836235433665 is 56633453263858.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 57925311713424 + 27910923720241 = 7610868^2 + 5283079^2 .

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

It is not a de Polignac number, because 85836235433665 - 2³ = 85836235433657 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 85836235433665.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 84986371212 + ... + 84986372221.

It is an arithmetic number, because the mean of its divisors is an integer number (13002914872701).

Almost surely, 2^{85836235433665} is an apocalyptic number.

It is an amenable number.

85836235433665 is a deficient number, since it is larger than the sum of its proper divisors (18187083547943).

85836235433665 is a wasteful number, since it uses less digits than its factorization.

85836235433665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169972743539.

The product of its digits is 1119744000, while the sum is 67.

The spelling of 85836235433665 in words is "eighty-five trillion, eight hundred thirty-six billion, two hundred thirty-five million, four hundred thirty-three thousand, six hundred sixty-five".