66930058 has 8 divisors (see below), whose sum is σ = 108117828. Its totient is φ = 30890784.

The previous prime is 66930053. The next prime is 66930089. The reversal of 66930058 is 85003966.

It can be written as a sum of positive squares in 2 ways, for example, as 65334889 + 1595169 = 8083^2 + 1263^2 .

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 = 66929999 and 66930026.

It is not an unprimeable number, because it can be changed into a prime (66930053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1287091 + ... + 1287142.

Almost surely, 2^66930058 is an apocalyptic number.

66930058 is a deficient number, since it is larger than the sum of its proper divisors (41187770).

66930058 is a wasteful number, since it uses less digits than its factorization.

66930058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2574248.

The product of its (nonzero) digits is 38880, while the sum is 37.

The square root of 66930058 is about 8181.0792686540. The cubic root of 66930058 is about 406.0134310876.

The spelling of 66930058 in words is "sixty-six million, nine hundred thirty thousand, fifty-eight".