66560010 has 64 divisors (see below), whose sum is σ = 176079744. Its totient is φ = 15968000.

The previous prime is 66560009. The next prime is 66560023. The reversal of 66560010 is 1006566.

66560010 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 31 ways as a sum of consecutive naturals, for example, 32332 + ... + 34328.

It is an arithmetic number, because the mean of its divisors is an integer number (2751246).

Almost surely, 2^66560010 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 66560010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88039872).

66560010 is an abundant number, since it is smaller than the sum of its proper divisors (109519734).

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

66560010 is a wasteful number, since it uses less digits than its factorization.

66560010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2119.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 66560010 is about 8158.4318346114. The cubic root of 66560010 is about 405.2637818237.

Adding to 66560010 its reverse (1006566), we get a palindrome (67566576).

The spelling of 66560010 in words is "sixty-six million, five hundred sixty thousand, ten".