5616449280 has 504 divisors, whose sum is σ = 21768992448. Its totient is φ = 1379524608.

The previous prime is 5616449269. The next prime is 5616449291. The reversal of 5616449280 is 829446165.

5616449280 is a `hidden beast` number, since 5 + 616 + 4 + 4 + 9 + 28 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (5616449269) and next prime (5616449291).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

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 55 ways as a sum of consecutive naturals, for example, 12130329 + ... + 12130791.

Almost surely, 2^5616449280 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 5616449280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10884496224).

5616449280 is an abundant number, since it is smaller than the sum of its proper divisors (16152543168).

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

5616449280 is an equidigital number, since it uses as much as digits as its factorization.

5616449280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515 (or 486 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The square root of 5616449280 is about 74942.9735198704. The cubic root of 5616449280 is about 1777.5450397176.

The spelling of 5616449280 in words is "five billion, six hundred sixteen million, four hundred forty-nine thousand, two hundred eighty".