1648280655420 has 384 divisors, whose sum is σ = 5520536985600. Its totient is φ = 359505420288.

The previous prime is 1648280655419. The next prime is 1648280655467. The reversal of 1648280655420 is 245560828461.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 398807674 + ... + 398811806.

It is an arithmetic number, because the mean of its divisors is an integer number (14376398400).

Almost surely, 2^{1648280655420} is an apocalyptic number.

1648280655420 is a gapful number since it is divisible by the number (10) 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 1648280655420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2760268492800).

1648280655420 is an abundant number, since it is smaller than the sum of its proper divisors (3872256330180).

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

1648280655420 is a wasteful number, since it uses less digits than its factorization.

1648280655420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4557 (or 4555 counting only the distinct ones).

The product of its (nonzero) digits is 3686400, while the sum is 51.

The spelling of 1648280655420 in words is "one trillion, six hundred forty-eight billion, two hundred eighty million, six hundred fifty-five thousand, four hundred twenty".