66995162 has 16 divisors (see below), whose sum is σ = 111956040. Its totient is φ = 29854272.

The previous prime is 66995153. The next prime is 66995171. The reversal of 66995162 is 26159966.

It is an interprime number because it is at equal distance from previous prime (66995153) and next prime (66995171).

It can be written as a sum of positive squares in 4 ways, for example, as 64176121 + 2819041 = 8011^2 + 1679^2 .

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, 43673 + ... + 45180.

Almost surely, 2^66995162 is an apocalyptic number.

66995162 is a deficient number, since it is larger than the sum of its proper divisors (44960878).

66995162 is a wasteful number, since it uses less digits than its factorization.

66995162 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88897.

The product of its digits is 174960, while the sum is 44.

The square root of 66995162 is about 8185.0572386514. The cubic root of 66995162 is about 406.1450338044.

The spelling of 66995162 in words is "sixty-six million, nine hundred ninety-five thousand, one hundred sixty-two".