161606010566056 has 16 divisors (see below), whose sum is σ = 346298594070240. Its totient is φ = 69259718814000.

The previous prime is 161606010566051. The next prime is 161606010566059. The reversal of 161606010566056 is 650665010606161.

161606010566056 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 2×161606010566056² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161606010566051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1442910808570 + ... + 1442910808681.

It is an arithmetic number, because the mean of its divisors is an integer number (21643662129390).

Almost surely, 2^{161606010566056} is an apocalyptic number.

It is an amenable number.

161606010566056 is an abundant number, since it is smaller than the sum of its proper divisors (184692583504184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

161606010566056 is a wasteful number, since it uses less digits than its factorization.

161606010566056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2885821617264 (or 2885821617260 counting only the distinct ones).

The product of its (nonzero) digits is 1166400, while the sum is 49.

The spelling of 161606010566056 in words is "one hundred sixty-one trillion, six hundred six billion, ten million, five hundred sixty-six thousand, fifty-six".