161606110000033 has 4 divisors (see below), whose sum is σ = 161629781621040. Its totient is φ = 161582438379028.

The previous prime is 161606109999989. The next prime is 161606110000037. The reversal of 161606110000033 is 330000011606161.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 161606110000033 - 2¹⁷ = 161606109868961 is a prime.

It is a super-2 number, since 2×161606110000033² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 161606109999956 and 161606110000010.

It is not an unprimeable number, because it can be changed into a prime (161606110000037) 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, 11835800263 + ... + 11835813916.

It is an arithmetic number, because the mean of its divisors is an integer number (40407445405260).

Almost surely, 2^{161606110000033} is an apocalyptic number.

It is an amenable number.

161606110000033 is a deficient number, since it is larger than the sum of its proper divisors (23671621007).

161606110000033 is an equidigital number, since it uses as much as digits as its factorization.

161606110000033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23671621006.

The product of its (nonzero) digits is 1944, while the sum is 28.

Adding to 161606110000033 its reverse (330000011606161), we get a palindrome (491606121606194).

The spelling of 161606110000033 in words is "one hundred sixty-one trillion, six hundred six billion, one hundred ten million, thirty-three", and thus it is an aban number.