66000010 has 8 divisors (see below), whose sum is σ = 118800036. Its totient is φ = 26400000.

The previous prime is 66000007. The next prime is 66000013. The reversal of 66000010 is 1000066.

It is an interprime number because it is at equal distance from previous prime (66000007) and next prime (66000013).

It can be written as a sum of positive squares in 2 ways, for example, as 65076489 + 923521 = 8067^2 + 961^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (66000013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3299991 + ... + 3300010.

Almost surely, 2^66000010 is an apocalyptic number.

66000010 is a deficient number, since it is larger than the sum of its proper divisors (52800026).

66000010 is a wasteful number, since it uses less digits than its factorization.

66000010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6600008.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 66000010 is about 8124.0390200934. The cubic root of 66000010 is about 404.1240224725.

Adding to 66000010 its reverse (1000066), we get a palindrome (67000076).

The spelling of 66000010 in words is "sixty-six million, ten", and thus it is an aban number and an uban number.