2665600066 has 8 divisors (see below), whose sum is σ = 4007944080. Its totient is φ = 1329618708.

The previous prime is 2665600043. The next prime is 2665600087. The reversal of 2665600066 is 6600065662.

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 = 2665599998 and 2665600034.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1589616 + ... + 1591291.

It is an arithmetic number, because the mean of its divisors is an integer number (500993010).

Almost surely, 2^2665600066 is an apocalyptic number.

2665600066 is a deficient number, since it is larger than the sum of its proper divisors (1342344014).

2665600066 is a wasteful number, since it uses less digits than its factorization.

2665600066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3181328.

The product of its (nonzero) digits is 77760, while the sum is 37.

The square root of 2665600066 is about 51629.4496000103. The cubic root of 2665600066 is about 1386.5376391466.

The spelling of 2665600066 in words is "two billion, six hundred sixty-five million, six hundred thousand, sixty-six".