66058138 has 8 divisors (see below), whose sum is σ = 100444788. Its totient is φ = 32576544.

The previous prime is 66058127. The next prime is 66058151. The reversal of 66058138 is 83185066.

It can be written as a sum of positive squares in 2 ways, for example, as 62204769 + 3853369 = 7887^2 + 1963^2 .

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 = 66058097 and 66058106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 226081 + ... + 226372.

Almost surely, 2^66058138 is an apocalyptic number.

66058138 is a deficient number, since it is larger than the sum of its proper divisors (34386650).

66058138 is a wasteful number, since it uses less digits than its factorization.

66058138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452528.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 66058138 is about 8127.6157635558. The cubic root of 66058138 is about 404.2426286575.

The spelling of 66058138 in words is "sixty-six million, fifty-eight thousand, one hundred thirty-eight".