66730001586 has 16 divisors (see below), whose sum is σ = 136563724704. Its totient is φ = 21726046944.

The previous prime is 66730001563. The next prime is 66730001599. The reversal of 66730001586 is 68510003766.

It is a super-2 number, since 2×66730001586² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129321451 + ... + 129321966.

It is an arithmetic number, because the mean of its divisors is an integer number (8535232794).

Almost surely, 2^66730001586 is an apocalyptic number.

66730001586 is an abundant number, since it is smaller than the sum of its proper divisors (69833723118).

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

66730001586 is a wasteful number, since it uses less digits than its factorization.

66730001586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258643465.

The product of its (nonzero) digits is 181440, while the sum is 42.

The spelling of 66730001586 in words is "sixty-six billion, seven hundred thirty million, one thousand, five hundred eighty-six".