165150651161 has 8 divisors (see below), whose sum is σ = 167963695200. Its totient is φ = 162338069920.

The previous prime is 165150651121. The next prime is 165150651199. The reversal of 165150651161 is 161156051561.

It is a happy number.

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 165150651161 - 2¹⁴ = 165150634777 is a prime.

It is a super-3 number, since 3×165150651161³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (165150651121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 646466 + ... + 864996.

It is an arithmetic number, because the mean of its divisors is an integer number (20995461900).

Almost surely, 2^165150651161 is an apocalyptic number.

It is an amenable number.

165150651161 is a deficient number, since it is larger than the sum of its proper divisors (2813044039).

165150651161 is a wasteful number, since it uses less digits than its factorization.

165150651161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231399.

The product of its (nonzero) digits is 27000, while the sum is 38.

The spelling of 165150651161 in words is "one hundred sixty-five billion, one hundred fifty million, six hundred fifty-one thousand, one hundred sixty-one".