161606110000005 has 96 divisors (see below), whose sum is σ = 306026917447680. Its totient is φ = 78240583290240.

The previous prime is 161606109999989. The next prime is 161606110000037. The reversal of 161606110000005 is 500000011606161.

It is not a de Polignac number, because 161606110000005 - 2⁴ = 161606109999989 is a prime.

It is a super-2 number, since 2×161606110000005² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1159735626 + ... + 1159874964.

It is an arithmetic number, because the mean of its divisors is an integer number (3187780390080).

Almost surely, 2^{161606110000005} is an apocalyptic number.

161606110000005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

161606110000005 is a deficient number, since it is larger than the sum of its proper divisors (144420807447675).

161606110000005 is a wasteful number, since it uses less digits than its factorization.

161606110000005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142751 (or 142748 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

Adding to 161606110000005 its reverse (500000011606161), we get a palindrome (661606121606166).

The spelling of 161606110000005 in words is "one hundred sixty-one trillion, six hundred six billion, one hundred ten million, five", and thus it is an aban number.