85660138 has 8 divisors (see below), whose sum is σ = 128945088. Its totient is φ = 42678444.

The previous prime is 85660129. The next prime is 85660163. The reversal of 85660138 is 83106658.

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

It is a junction number, because it is equal to n+sod(n) for n = 85660097 and 85660106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75106 + ... + 76237.

It is an arithmetic number, because the mean of its divisors is an integer number (16118136).

Almost surely, 2^85660138 is an apocalyptic number.

85660138 is a deficient number, since it is larger than the sum of its proper divisors (43284950).

85660138 is a wasteful number, since it uses less digits than its factorization.

85660138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151628.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 85660138 is about 9255.2762249433. The cubic root of 85660138 is about 440.8182741328.

The spelling of 85660138 in words is "eighty-five million, six hundred sixty thousand, one hundred thirty-eight".