161606010566066 has 32 divisors (see below), whose sum is σ = 264874106609280. Its totient is φ = 73338509577600.

The previous prime is 161606010566059. The next prime is 161606010566069. The reversal of 161606010566066 is 660665010606161.

It is a happy number.

161606010566066 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 2×161606010566066² (a number of 29 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (161606010566069) 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, 31573736 + ... + 36333356.

It is an arithmetic number, because the mean of its divisors is an integer number (8277315831540).

Almost surely, 2^{161606010566066} is an apocalyptic number.

161606010566066 is a deficient number, since it is larger than the sum of its proper divisors (103268096043214).

161606010566066 is a wasteful number, since it uses less digits than its factorization.

161606010566066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4762130.

The product of its (nonzero) digits is 1399680, while the sum is 50.

The spelling of 161606010566066 in words is "one hundred sixty-one trillion, six hundred six billion, ten million, five hundred sixty-six thousand, sixty-six".