66461170 has 16 divisors (see below), whose sum is σ = 119914200. Its totient is φ = 26521344.

The previous prime is 66461167. The next prime is 66461189. The reversal of 66461170 is 7116466.

It can be written as a sum of positive squares in 4 ways, for example, as 34187409 + 32273761 = 5847^2 + 5681^2 .

It is a super-3 number, since 3×66461170³ (a number of 24 digits) contains 333 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3345 + ... + 12004.

Almost surely, 2^66461170 is an apocalyptic number.

66461170 is a deficient number, since it is larger than the sum of its proper divisors (53453030).

66461170 is a wasteful number, since it uses less digits than its factorization.

66461170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15789.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 66461170 is about 8152.3720474473. The cubic root of 66461170 is about 405.0630801507.

The spelling of 66461170 in words is "sixty-six million, four hundred sixty-one thousand, one hundred seventy".