6650661605159 has 8 divisors (see below), whose sum is σ = 7813364683152. Its totient is φ = 5580974773440.

The previous prime is 6650661605111. The next prime is 6650661605167. The reversal of 6650661605159 is 9515061660566.

It is a happy number.

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

It is not a de Polignac number, because 6650661605159 - 2³² = 6646366637863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6650661605179) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23254061414 + ... + 23254061699.

It is an arithmetic number, because the mean of its divisors is an integer number (976670585394).

Almost surely, 2^{6650661605159} is an apocalyptic number.

6650661605159 is a deficient number, since it is larger than the sum of its proper divisors (1162703077993).

6650661605159 is a wasteful number, since it uses less digits than its factorization.

6650661605159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46508123137.

The product of its (nonzero) digits is 8748000, while the sum is 56.

The spelling of 6650661605159 in words is "six trillion, six hundred fifty billion, six hundred sixty-one million, six hundred five thousand, one hundred fifty-nine".