6651000161066 has 8 divisors (see below), whose sum is σ = 9976541436480. Its totient is φ = 3325486348908.

The previous prime is 6651000161041. The next prime is 6651000161137. The reversal of 6651000161066 is 6601610001566.

It is a happy number.

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

It is a Curzon number.

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, 6249296 + ... + 7235723.

It is an arithmetic number, because the mean of its divisors is an integer number (1247067679560).

Almost surely, 2^{6651000161066} is an apocalyptic number.

6651000161066 is a deficient number, since it is larger than the sum of its proper divisors (3325541275414).

6651000161066 is a wasteful number, since it uses less digits than its factorization.

6651000161066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13731628.

The product of its (nonzero) digits is 38880, while the sum is 38.

The spelling of 6651000161066 in words is "six trillion, six hundred fifty-one billion, one hundred sixty-one thousand, sixty-six".