5661300128 has 48 divisors (see below), whose sum is σ = 12205359936. Its totient is φ = 2563491840.

The previous prime is 5661300121. The next prime is 5661300179. The reversal of 5661300128 is 8210031665.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a junction number, because it is equal to n+sod(n) for n = 5661300094 and 5661300103.

It is not an unprimeable number, because it can be changed into a prime (5661300121) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 62000 + ... + 123152.

It is an arithmetic number, because the mean of its divisors is an integer number (254278332).

Almost surely, 2^5661300128 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 5661300128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6102679968).

5661300128 is an abundant number, since it is smaller than the sum of its proper divisors (6544059808).

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

5661300128 is a wasteful number, since it uses less digits than its factorization.

5661300128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61437 (or 61429 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 32.

The square root of 5661300128 is about 75241.6116786449. The cubic root of 5661300128 is about 1782.2641020399.

The spelling of 5661300128 in words is "five billion, six hundred sixty-one million, three hundred thousand, one hundred twenty-eight".