85236643611 has 18 divisors (see below), whose sum is σ = 143220755652. Its totient is φ = 48706653240.

The previous prime is 85236643601. The next prime is 85236643663. The reversal of 85236643611 is 11634663258.

85236643611 is a `hidden beast` number, since 8 + 5 + 23 + 6 + 6 + 4 + 3 + 611 = 666.

It is not a de Polignac number, because 85236643611 - 2¹¹ = 85236641563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (85236643601) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 96639745 + ... + 96640626.

Almost surely, 2^85236643611 is an apocalyptic number.

85236643611 is a deficient number, since it is larger than the sum of its proper divisors (57984112041).

85236643611 is a wasteful number, since it uses less digits than its factorization.

85236643611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193280391 (or 193280381 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The spelling of 85236643611 in words is "eighty-five billion, two hundred thirty-six million, six hundred forty-three thousand, six hundred eleven".