165687106 has 32 divisors (see below), whose sum is σ = 283752000. Its totient is φ = 71928000.

The previous prime is 165687103. The next prime is 165687113. The reversal of 165687106 is 601786561.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (165687103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 72481 + ... + 74731.

It is an arithmetic number, because the mean of its divisors is an integer number (8867250).

Almost surely, 2^165687106 is an apocalyptic number.

165687106 is a deficient number, since it is larger than the sum of its proper divisors (118064894).

165687106 is a wasteful number, since it uses less digits than its factorization.

165687106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2434.

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 165687106 is about 12871.9503572691. The cubic root of 165687106 is about 549.2409429872.

The spelling of 165687106 in words is "one hundred sixty-five million, six hundred eighty-seven thousand, one hundred six".