85166013 has 8 divisors (see below), whose sum is σ = 113652000. Its totient is φ = 56728688.

The previous prime is 85166009. The next prime is 85166023. The reversal of 85166013 is 31066158.

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

It is a cyclic number.

It is not a de Polignac number, because 85166013 - 2² = 85166009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85166023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7863 + ... + 15236.

It is an arithmetic number, because the mean of its divisors is an integer number (14206500).

Almost surely, 2^85166013 is an apocalyptic number.

It is an amenable number.

85166013 is a deficient number, since it is larger than the sum of its proper divisors (28485987).

85166013 is a wasteful number, since it uses less digits than its factorization.

85166013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24331.

The product of its (nonzero) digits is 4320, while the sum is 30.

The square root of 85166013 is about 9228.5433845217. The cubic root of 85166013 is about 439.9690284674.

The spelling of 85166013 in words is "eighty-five million, one hundred sixty-six thousand, thirteen".