1648616970 has 384 divisors, whose sum is σ = 5525065728. Its totient is φ = 305510400.

The previous prime is 1648616953. The next prime is 1648616971. The reversal of 1648616970 is 796168461.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1648616971) 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 191 ways as a sum of consecutive naturals, for example, 16005939 + ... + 16006041.

It is an arithmetic number, because the mean of its divisors is an integer number (14388192).

Almost surely, 2^1648616970 is an apocalyptic number.

1648616970 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1648616970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2762532864).

1648616970 is an abundant number, since it is smaller than the sum of its proper divisors (3876448758).

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

1648616970 is a wasteful number, since it uses less digits than its factorization.

1648616970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 1648616970 is about 40603.1645318441. The cubic root of 1648616970 is about 1181.3355007679.

The spelling of 1648616970 in words is "one billion, six hundred forty-eight million, six hundred sixteen thousand, nine hundred seventy".