5664547980 has 432 divisors, whose sum is σ = 21750543360. Its totient is φ = 1182698496.

The previous prime is 5664547969. The next prime is 5664548017. The reversal of 5664547980 is 897454665.

5664547980 is a `hidden beast` number, since 5 + 6 + 6 + 4 + 547 + 98 + 0 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 14561626 + ... + 14562014.

It is an arithmetic number, because the mean of its divisors is an integer number (50348480).

Almost surely, 2^5664547980 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 5664547980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10875271680).

5664547980 is an abundant number, since it is smaller than the sum of its proper divisors (16085995380).

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

5664547980 is a wasteful number, since it uses less digits than its factorization.

5664547980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 558 (or 546 counting only the distinct ones).

The product of its (nonzero) digits is 7257600, while the sum is 54.

The square root of 5664547980 is about 75263.1914019064. The cubic root of 5664547980 is about 1782.6048614240.

The spelling of 5664547980 in words is "five billion, six hundred sixty-four million, five hundred forty-seven thousand, nine hundred eighty".