165016655 has 8 divisors (see below), whose sum is σ = 198909312. Its totient is φ = 131420448.

The previous prime is 165016619. The next prime is 165016673. The reversal of 165016655 is 556610561.

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 165016655 - 2¹² = 165012559 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 72884 + ... + 75113.

It is an arithmetic number, because the mean of its divisors is an integer number (24863664).

Almost surely, 2^165016655 is an apocalyptic number.

165016655 is a deficient number, since it is larger than the sum of its proper divisors (33892657).

165016655 is a wasteful number, since it uses less digits than its factorization.

165016655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148225.

The product of its (nonzero) digits is 27000, while the sum is 35.

The square root of 165016655 is about 12845.8808573021. The cubic root of 165016655 is about 548.4991090573.

The spelling of 165016655 in words is "one hundred sixty-five million, sixteen thousand, six hundred fifty-five".