6001646661 has 12 divisors (see below), whose sum is σ = 8672044992. Its totient is φ = 3999713256.

The previous prime is 6001646659. The next prime is 6001646671. The reversal of 6001646661 is 1666461006.

It is not a de Polignac number, because 6001646661 - 2¹ = 6001646659 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6001646671) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87571 + ... + 140256.

It is an arithmetic number, because the mean of its divisors is an integer number (722670416).

Almost surely, 2^6001646661 is an apocalyptic number.

It is an amenable number.

6001646661 is a deficient number, since it is larger than the sum of its proper divisors (2670398331).

6001646661 is a wasteful number, since it uses less digits than its factorization.

6001646661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230760 (or 230757 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 6001646661 is about 77470.2953460228. The cubic root of 6001646661 is about 1817.2868099391.

The spelling of 6001646661 in words is "six billion, one million, six hundred forty-six thousand, six hundred sixty-one".