1648706616 has 128 divisors (see below), whose sum is σ = 4727808000. Its totient is φ = 532082304.

The previous prime is 1648706599. The next prime is 1648706623. The reversal of 1648706616 is 6166078461.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 903481 + ... + 905303.

It is an arithmetic number, because the mean of its divisors is an integer number (36936000).

Almost surely, 2^1648706616 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1648706616, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2363904000).

1648706616 is an abundant number, since it is smaller than the sum of its proper divisors (3079101384).

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

1648706616 is a wasteful number, since it uses less digits than its factorization.

1648706616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1970 (or 1960 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 1648706616 is about 40604.2684455711. The cubic root of 1648706616 is about 1181.3569126714.

The spelling of 1648706616 in words is "one billion, six hundred forty-eight million, seven hundred six thousand, six hundred sixteen".