66460410 has 48 divisors (see below), whose sum is σ = 176070024. Its totient is φ = 17387136.

The previous prime is 66460393. The next prime is 66460411. The reversal of 66460410 is 1406466.

66460410 is a `hidden beast` number, since 6 + 646 + 0 + 4 + 10 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 66438801 + 21609 = 8151^2 + 147^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66460411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2197 + ... + 11736.

Almost surely, 2^66460410 is an apocalyptic number.

66460410 is an abundant number, since it is smaller than the sum of its proper divisors (109609614).

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

66460410 is a wasteful number, since it uses less digits than its factorization.

66460410 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13999 (or 13996 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 66460410 is about 8152.3254351136. The cubic root of 66460410 is about 405.0615361458.

Adding to 66460410 its reverse (1406466), we get a palindrome (67866876).

The spelling of 66460410 in words is "sixty-six million, four hundred sixty thousand, four hundred ten".