165600013 has 8 divisors (see below), whose sum is σ = 167837600. Its totient is φ = 163377648.

The previous prime is 165599971. The next prime is 165600041. The reversal of 165600013 is 310006561.

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 165600013 - 2⁹ = 165599501 is a prime.

It is a super-3 number, since 3×165600013³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165600073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19003 + ... + 26311.

It is an arithmetic number, because the mean of its divisors is an integer number (20979700).

Almost surely, 2^165600013 is an apocalyptic number.

It is an amenable number.

165600013 is a deficient number, since it is larger than the sum of its proper divisors (2237587).

165600013 is a wasteful number, since it uses less digits than its factorization.

165600013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7611.

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 165600013 is about 12868.5668588231. The cubic root of 165600013 is about 549.1446904252.

Adding to 165600013 its reverse (310006561), we get a palindrome (475606574).

The spelling of 165600013 in words is "one hundred sixty-five million, six hundred thousand, thirteen".