1648165180 has 12 divisors (see below), whose sum is σ = 3461146920. Its totient is φ = 659266064.

The previous prime is 1648165171. The next prime is 1648165187. The reversal of 1648165180 is 815618461.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1648165187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41204110 + ... + 41204149.

It is an arithmetic number, because the mean of its divisors is an integer number (288428910).

Almost surely, 2^1648165180 is an apocalyptic number.

1648165180 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1648165180 is an abundant number, since it is smaller than the sum of its proper divisors (1812981740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1648165180 is a wasteful number, since it uses less digits than its factorization.

1648165180 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82408268 (or 82408266 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 40.

The square root of 1648165180 is about 40597.6006680198. The cubic root of 1648165180 is about 1181.2275791308.

The spelling of 1648165180 in words is "one billion, six hundred forty-eight million, one hundred sixty-five thousand, one hundred eighty".