66560058 has 12 divisors (see below), whose sum is σ = 144213498. Its totient is φ = 22186680.

The previous prime is 66560041. The next prime is 66560071. The reversal of 66560058 is 85006566.

It can be written as a sum of positive squares in only one way, i.e., 66536649 + 23409 = 8157^2 + 153^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1848873 + ... + 1848908.

Almost surely, 2^66560058 is an apocalyptic number.

66560058 is an abundant number, since it is smaller than the sum of its proper divisors (77653440).

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

66560058 is a wasteful number, since it uses less digits than its factorization.

66560058 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3697789 (or 3697786 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 36.

The square root of 66560058 is about 8158.4347763526. The cubic root of 66560058 is about 405.2638792429.

The spelling of 66560058 in words is "sixty-six million, five hundred sixty thousand, fifty-eight".