499516160606161 has 16 divisors (see below), whose sum is σ = 503081785358928. Its totient is φ = 495963235123200.

The previous prime is 499516160606153. The next prime is 499516160606213. The reversal of 499516160606161 is 161606061615994.

It can be written as a sum of positive squares in 8 ways, for example, as 92685001563025 + 406831159043136 = 9627305^2 + 20170056^2 .

It is a cyclic number.

It is not a de Polignac number, because 499516160606161 - 2³ = 499516160606153 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 499516160606161.

It is not an unprimeable number, because it can be changed into a prime (499516160606861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2305411171 + ... + 2305627831.

It is an arithmetic number, because the mean of its divisors is an integer number (31442611584933).

Almost surely, 2^{499516160606161} is an apocalyptic number.

It is an amenable number.

499516160606161 is a deficient number, since it is larger than the sum of its proper divisors (3565624752767).

499516160606161 is a wasteful number, since it uses less digits than its factorization.

499516160606161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245892.

The product of its (nonzero) digits is 12597120, while the sum is 61.

The spelling of 499516160606161 in words is "four hundred ninety-nine trillion, five hundred sixteen billion, one hundred sixty million, six hundred six thousand, one hundred sixty-one".