6005065015661 has 4 divisors (see below), whose sum is σ = 6008858488512. Its totient is φ = 6001271542812.

The previous prime is 6005065015597. The next prime is 6005065015787. The reversal of 6005065015661 is 1665105605006.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6005065015661 - 2⁶ = 6005065015597 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 (6005065015561) 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, 1896734051 + ... + 1896737216.

It is an arithmetic number, because the mean of its divisors is an integer number (1502214622128).

Almost surely, 2^{6005065015661} is an apocalyptic number.

It is an amenable number.

6005065015661 is a deficient number, since it is larger than the sum of its proper divisors (3793472851).

6005065015661 is a wasteful number, since it uses less digits than its factorization.

6005065015661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3793472850.

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 6005065015661 in words is "six trillion, five billion, sixty-five million, fifteen thousand, six hundred sixty-one".