2066638682 has 8 divisors (see below), whose sum is σ = 3100280736. Its totient is φ = 1033211772.

The previous prime is 2066638649. The next prime is 2066638697. The reversal of 2066638682 is 2868366602.

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 27128 + ... + 69779.

It is an arithmetic number, because the mean of its divisors is an integer number (387535092).

Almost surely, 2^2066638682 is an apocalyptic number.

2066638682 is a deficient number, since it is larger than the sum of its proper divisors (1033642054).

2066638682 is a wasteful number, since it uses less digits than its factorization.

2066638682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 107572.

The product of its (nonzero) digits is 995328, while the sum is 47.

The square root of 2066638682 is about 45460.2978652802. The cubic root of 2066638682 is about 1273.7616954815.

The spelling of 2066638682 in words is "two billion, sixty-six million, six hundred thirty-eight thousand, six hundred eighty-two".