66560130 has 288 divisors, whose sum is σ = 230053824. Its totient is φ = 13716864.

The previous prime is 66560119. The next prime is 66560141. The reversal of 66560130 is 3106566.

66560130 is a `hidden beast` number, since 6 + 656 + 0 + 1 + 3 + 0 = 666.

66560130 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (66560119) and next prime (66560141).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 66560094 and 66560103.

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 143 ways as a sum of consecutive naturals, for example, 1547889 + ... + 1547931.

It is an arithmetic number, because the mean of its divisors is an integer number (798798).

Almost surely, 2^66560130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66560130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115026912).

66560130 is an abundant number, since it is smaller than the sum of its proper divisors (163493694).

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

66560130 is a wasteful number, since it uses less digits than its factorization.

66560130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92 (or 73 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 66560130 is about 8158.4391889626. The cubic root of 66560130 is about 405.2640253715.

Adding to 66560130 its reverse (3106566), we get a palindrome (69666696).

The spelling of 66560130 in words is "sixty-six million, five hundred sixty thousand, one hundred thirty".