161115050666085 has 32 divisors (see below), whose sum is σ = 257964200520192. Its totient is φ = 85867990256640.

The previous prime is 161115050666069. The next prime is 161115050666137. The reversal of 161115050666085 is 580666050511161.

It is not a de Polignac number, because 161115050666085 - 2⁴ = 161115050666069 is a prime.

It is a super-2 number, since 2×161115050666085² (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 31 ways as a sum of consecutive naturals, for example, 1181673037 + ... + 1181809373.

It is an arithmetic number, because the mean of its divisors is an integer number (8061381266256).

Almost surely, 2^{161115050666085} is an apocalyptic number.

161115050666085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

161115050666085 is a deficient number, since it is larger than the sum of its proper divisors (96849149854107).

161115050666085 is a wasteful number, since it uses less digits than its factorization.

161115050666085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190813.

The product of its (nonzero) digits is 1296000, while the sum is 51.

The spelling of 161115050666085 in words is "one hundred sixty-one trillion, one hundred fifteen billion, fifty million, six hundred sixty-six thousand, eighty-five".