161606080823499 has 24 divisors (see below), whose sum is σ = 253693541781680. Its totient is φ = 98537511517632.

The previous prime is 161606080823479. The next prime is 161606080823581. The reversal of 161606080823499 is 994328080606161.

161606080823499 is a `hidden beast` number, since 1 + 6 + 1 + 6 + 0 + 60 + 8 + 0 + 82 + 3 + 499 = 666.

It is not a de Polignac number, because 161606080823499 - 2⁷ = 161606080823371 is a prime.

It is a super-2 number, since 2×161606080823499² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161606080823479) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6335989789 + ... + 6336015294.

Almost surely, 2^{161606080823499} is an apocalyptic number.

161606080823499 is a deficient number, since it is larger than the sum of its proper divisors (92087460958181).

161606080823499 is a wasteful number, since it uses less digits than its factorization.

161606080823499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12672005211 (or 12672005208 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 63.

The spelling of 161606080823499 in words is "one hundred sixty-one trillion, six hundred six billion, eighty million, eight hundred twenty-three thousand, four hundred ninety-nine".