6661166002 has 8 divisors (see below), whose sum is σ = 10070424576. Its totient is φ = 3304357812.

The previous prime is 6661165997. The next prime is 6661166009. The reversal of 6661166002 is 2006611666.

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

It is a super-2 number, since 2×6661166002² = 88742265012401328008, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6661166009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13112278 + ... + 13112785.

It is an arithmetic number, because the mean of its divisors is an integer number (1258803072).

Almost surely, 2^6661166002 is an apocalyptic number.

6661166002 is a deficient number, since it is larger than the sum of its proper divisors (3409258574).

6661166002 is a wasteful number, since it uses less digits than its factorization.

6661166002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26225192.

The product of its (nonzero) digits is 15552, while the sum is 34.

The square root of 6661166002 is about 81615.9665874270. The cubic root of 6661166002 is about 1881.5542829672.

Adding to 6661166002 its reverse (2006611666), we get a palindrome (8667777668).

The spelling of 6661166002 in words is "six billion, six hundred sixty-one million, one hundred sixty-six thousand, two".