5646490328880 has 320 divisors, whose sum is σ = 20477578636800. Its totient is φ = 1426138721280.

The previous prime is 5646490328879. The next prime is 5646490328887. The reversal of 5646490328880 is 888230946465.

5646490328880 is a `hidden beast` number, since 5 + 6 + 46 + 490 + 3 + 28 + 8 + 80 = 666.

It is not an unprimeable number, because it can be changed into a prime (5646490328887) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 200137975 + ... + 200166185.

It is an arithmetic number, because the mean of its divisors is an integer number (63992433240).

Almost surely, 2^{5646490328880} 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 5646490328880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10238789318400).

5646490328880 is an abundant number, since it is smaller than the sum of its proper divisors (14831088307920).

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

5646490328880 is a wasteful number, since it uses less digits than its factorization.

5646490328880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33129 (or 33117 counting only the distinct ones).

The product of its (nonzero) digits is 79626240, while the sum is 63.

The spelling of 5646490328880 in words is "five trillion, six hundred forty-six billion, four hundred ninety million, three hundred twenty-eight thousand, eight hundred eighty".