161648085 has 8 divisors (see below), whose sum is σ = 258636960. Its totient is φ = 86212304.

The previous prime is 161648083. The next prime is 161648093. The reversal of 161648085 is 580846161.

161648085 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 161648085 - 2¹ = 161648083 is a prime.

It is a super-2 number, since 2×161648085² = 52260206768334450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161648083) 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, 5388255 + ... + 5388284.

It is an arithmetic number, because the mean of its divisors is an integer number (32329620).

Almost surely, 2^161648085 is an apocalyptic number.

161648085 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

161648085 is a deficient number, since it is larger than the sum of its proper divisors (96988875).

161648085 is a wasteful number, since it uses less digits than its factorization.

161648085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10776547.

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 161648085 is about 12714.0900185582. The cubic root of 161648085 is about 544.7411558756.

The spelling of 161648085 in words is "one hundred sixty-one million, six hundred forty-eight thousand, eighty-five".