6001001665 has 16 divisors (see below), whose sum is σ = 7286457600. Its totient is φ = 4744029312.

The previous prime is 6001001653. The next prime is 6001001729. The reversal of 6001001665 is 5661001006.

It is a cyclic number.

It is not a de Polignac number, because 6001001665 - 2⁷ = 6001001537 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1057606 + ... + 1063264.

It is an arithmetic number, because the mean of its divisors is an integer number (455403600).

Almost surely, 2^6001001665 is an apocalyptic number.

It is an amenable number.

6001001665 is a deficient number, since it is larger than the sum of its proper divisors (1285455935).

6001001665 is a wasteful number, since it uses less digits than its factorization.

6001001665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8136.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 6001001665 is about 77466.1323740898. The cubic root of 6001001665 is about 1817.2217064333.

The spelling of 6001001665 in words is "six billion, one million, one thousand, six hundred sixty-five".