66675058 has 4 divisors (see below), whose sum is σ = 100012590. Its totient is φ = 33337528.

The previous prime is 66675053. The next prime is 66675067. The reversal of 66675058 is 85057666.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 85057666 = 2 ⋅42528833.

It can be written as a sum of positive squares in only one way, i.e., 34492129 + 32182929 = 5873^2 + 5673^2 .

It is not an unprimeable number, because it can be changed into a prime (66675053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16668763 + ... + 16668766.

Almost surely, 2^66675058 is an apocalyptic number.

66675058 is a deficient number, since it is larger than the sum of its proper divisors (33337532).

66675058 is a wasteful number, since it uses less digits than its factorization.

66675058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33337531.

The product of its (nonzero) digits is 302400, while the sum is 43.

The square root of 66675058 is about 8165.4796552315. The cubic root of 66675058 is about 405.4971449193.

The spelling of 66675058 in words is "sixty-six million, six hundred seventy-five thousand, fifty-eight".