161606110566067 has 8 divisors (see below), whose sum is σ = 162318851481600. Its totient is φ = 160893376841544.

The previous prime is 161606110566049. The next prime is 161606110566083. The reversal of 161606110566067 is 760665011606161.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 161606110566067 - 2²³ = 161606102177459 is a prime.

It is a super-2 number, since 2×161606110566067² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (161606110566367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46049934 + ... + 49434892.

It is an arithmetic number, because the mean of its divisors is an integer number (20289856435200).

Almost surely, 2^{161606110566067} is an apocalyptic number.

161606110566067 is a deficient number, since it is larger than the sum of its proper divisors (712740915533).

161606110566067 is a wasteful number, since it uses less digits than its factorization.

161606110566067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3595505.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The spelling of 161606110566067 in words is "one hundred sixty-one trillion, six hundred six billion, one hundred ten million, five hundred sixty-six thousand, sixty-seven".