66146338 has 8 divisors (see below), whose sum is σ = 99475740. Its totient is φ = 32987760.

The previous prime is 66146329. The next prime is 66146359. The reversal of 66146338 is 83364166.

It can be written as a sum of positive squares in 2 ways, for example, as 63313849 + 2832489 = 7957^2 + 1683^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 66146297 and 66146306.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41733 + ... + 43288.

Almost surely, 2^66146338 is an apocalyptic number.

66146338 is a deficient number, since it is larger than the sum of its proper divisors (33329402).

66146338 is a wasteful number, since it uses less digits than its factorization.

66146338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85412.

The product of its digits is 62208, while the sum is 37.

The square root of 66146338 is about 8133.0398990783. The cubic root of 66146338 is about 404.4224618789.

The spelling of 66146338 in words is "sixty-six million, one hundred forty-six thousand, three hundred thirty-eight".