5499943680 has 864 divisors, whose sum is σ = 23488012800. Its totient is φ = 1070530560.

The previous prime is 5499943679. The next prime is 5499943703. The reversal of 5499943680 is 863499945.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a self number, because there is not a number n which added to its sum of digits gives 5499943680.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 61797076 + ... + 61797164.

It is an arithmetic number, because the mean of its divisors is an integer number (27185200).

Almost surely, 2^5499943680 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 5499943680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11744006400).

5499943680 is an abundant number, since it is smaller than the sum of its proper divisors (17988069120).

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

5499943680 is a wasteful number, since it uses less digits than its factorization.

5499943680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161 (or 136 counting only the distinct ones).

The product of its (nonzero) digits is 8398080, while the sum is 57.

The square root of 5499943680 is about 74161.6051606220. The cubic root of 5499943680 is about 1765.1681425146.

The spelling of 5499943680 in words is "five billion, four hundred ninety-nine million, nine hundred forty-three thousand, six hundred eighty".