66058674 has 16 divisors (see below), whose sum is σ = 144128160. Its totient is φ = 20017760.

The previous prime is 66058661. The next prime is 66058721. The reversal of 66058674 is 47685066.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500379 + ... + 500510.

It is an arithmetic number, because the mean of its divisors is an integer number (9008010).

Almost surely, 2^66058674 is an apocalyptic number.

66058674 is an abundant number, since it is smaller than the sum of its proper divisors (78069486).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

66058674 is a wasteful number, since it uses less digits than its factorization.

66058674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000905.

The product of its (nonzero) digits is 241920, while the sum is 42.

The square root of 66058674 is about 8127.6487374886. The cubic root of 66058674 is about 404.2437220048.

The spelling of 66058674 in words is "sixty-six million, fifty-eight thousand, six hundred seventy-four".