161606105162056 has 16 divisors (see below), whose sum is σ = 303011744918400. Its totient is φ = 80802973183824.

The previous prime is 161606105162011. The next prime is 161606105162069. The reversal of 161606105162056 is 650261501606161.

161606105162056 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161606105162056² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 161606105161997 and 161606105162015.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 778320 + ... + 17994943.

It is an arithmetic number, because the mean of its divisors is an integer number (18938234057400).

Almost surely, 2^{161606105162056} is an apocalyptic number.

It is an amenable number.

161606105162056 is a deficient number, since it is larger than the sum of its proper divisors (141405639756344).

161606105162056 is a wasteful number, since it uses less digits than its factorization.

161606105162056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19849308 (or 19849304 counting only the distinct ones).

The product of its (nonzero) digits is 388800, while the sum is 46.

The spelling of 161606105162056 in words is "one hundred sixty-one trillion, six hundred six billion, one hundred five million, one hundred sixty-two thousand, fifty-six".