648648960 has 144 divisors (see below), whose sum is σ = 2138841600. Its totient is φ = 167362560.

The previous prime is 648648953. The next prime is 648648997. The reversal of 648648960 is 69846846.

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 15 ways as a sum of consecutive naturals, for example, 116316 + ... + 121764.

Almost surely, 2^648648960 is an apocalyptic number.

648648960 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 648648960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1069420800).

648648960 is an abundant number, since it is smaller than the sum of its proper divisors (1490192640).

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

648648960 is a wasteful number, since it uses less digits than its factorization.

648648960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5504 (or 5490 counting only the distinct ones).

The product of its (nonzero) digits is 1990656, while the sum is 51.

The square root of 648648960 is about 25468.5877111394. The cubic root of 648648960 is about 865.6385230503.

The spelling of 648648960 in words is "six hundred forty-eight million, six hundred forty-eight thousand, nine hundred sixty".