165015550160997 has 16 divisors (see below), whose sum is σ = 225980101305600. Its totient is φ = 107031021354432.

The previous prime is 165015550160987. The next prime is 165015550161013. The reversal of 165015550160997 is 799061055510561.

It is a happy number.

It is not a de Polignac number, because 165015550160997 - 2¹⁸ = 165015549898853 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 165015550160997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (165015550160957) 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, 40347997 + ... + 44249202.

It is an arithmetic number, because the mean of its divisors is an integer number (14123756331600).

Almost surely, 2^{165015550160997} is an apocalyptic number.

It is an amenable number.

165015550160997 is a deficient number, since it is larger than the sum of its proper divisors (60964551144603).

165015550160997 is a wasteful number, since it uses less digits than its factorization.

165015550160997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84614812.

The product of its (nonzero) digits is 12757500, while the sum is 60.

The spelling of 165015550160997 in words is "one hundred sixty-five trillion, fifteen billion, five hundred fifty million, one hundred sixty thousand, nine hundred ninety-seven".