165106407 has 8 divisors (see below), whose sum is σ = 221112576. Its totient is φ = 109585592.

The previous prime is 165106373. The next prime is 165106411. The reversal of 165106407 is 704601561.

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 165106407 - 2⁶ = 165106343 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165106427) 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, 120543 + ... + 121904.

It is an arithmetic number, because the mean of its divisors is an integer number (27639072).

Almost surely, 2^165106407 is an apocalyptic number.

165106407 is a deficient number, since it is larger than the sum of its proper divisors (56006169).

165106407 is a wasteful number, since it uses less digits than its factorization.

165106407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242677.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 165106407 is about 12849.3737979716. The cubic root of 165106407 is about 548.5985333035.

Adding to 165106407 its reverse (704601561), we get a palindrome (869707968).

The spelling of 165106407 in words is "one hundred sixty-five million, one hundred six thousand, four hundred seven".