165015550160149 has 8 divisors (see below), whose sum is σ = 177716859206040. Its totient is φ = 152315356141056.

The previous prime is 165015550160089. The next prime is 165015550160243. The reversal of 165015550160149 is 941061055510561.

It can be written as a sum of positive squares in 4 ways, for example, as 16689823161124 + 148325726999025 = 4085318^2 + 12178905^2 .

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 165015550160149 - 2¹¹ = 165015550158101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165015550160449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278449312 + ... + 279041305.

It is an arithmetic number, because the mean of its divisors is an integer number (22214607400755).

Almost surely, 2^{165015550160149} is an apocalyptic number.

It is an amenable number.

165015550160149 is a deficient number, since it is larger than the sum of its proper divisors (12701309045891).

165015550160149 is a wasteful number, since it uses less digits than its factorization.

165015550160149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557513399.

The product of its (nonzero) digits is 810000, while the sum is 49.

The spelling of 165015550160149 in words is "one hundred sixty-five trillion, fifteen billion, five hundred fifty million, one hundred sixty thousand, one hundred forty-nine".