6555022788720 has 120 divisors (see below), whose sum is σ = 23638214874384. Its totient is φ = 1498290920448.

The previous prime is 6555022788679. The next prime is 6555022788749. The reversal of 6555022788720 is 278872205556.

It is a tau number, because it is divible by the number of its divisors (120).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 278688189 + ... + 278711708.

Almost surely, 2^{6555022788720} is an apocalyptic number.

6555022788720 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6555022788720 is an abundant number, since it is smaller than the sum of its proper divisors (17083192085664).

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

6555022788720 is a wasteful number, since it uses less digits than its factorization.

6555022788720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 557399927 (or 557399914 counting only the distinct ones).

The product of its (nonzero) digits is 18816000, while the sum is 57.

The spelling of 6555022788720 in words is "six trillion, five hundred fifty-five billion, twenty-two million, seven hundred eighty-eight thousand, seven hundred twenty".