85660911 has 24 divisors (see below), whose sum is σ = 148853120. Its totient is φ = 46372176.

The previous prime is 85660903. The next prime is 85660921. The reversal of 85660911 is 11906658.

85660911 is a `hidden beast` number, since 8 + 566 + 0 + 91 + 1 = 666.

It is not a de Polignac number, because 85660911 - 2³ = 85660903 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85660921) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34585 + ... + 36978.

Almost surely, 2^85660911 is an apocalyptic number.

85660911 is a deficient number, since it is larger than the sum of its proper divisors (63192209).

85660911 is a wasteful number, since it uses less digits than its factorization.

85660911 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71595 (or 71592 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 85660911 is about 9255.3179848128. The cubic root of 85660911 is about 440.8196001152.

The spelling of 85660911 in words is "eighty-five million, six hundred sixty thousand, nine hundred eleven".