6066551009991 has 8 divisors (see below), whose sum is σ = 8091410423040. Its totient is φ = 4043029468472.

The previous prime is 6066551009983. The next prime is 6066551010041. The reversal of 6066551009991 is 1999001556606.

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

It is a cyclic number.

It is not a de Polignac number, because 6066551009991 - 2³ = 6066551009983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6066551009191) 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, 334457301 + ... + 334475438.

It is an arithmetic number, because the mean of its divisors is an integer number (1011426302880).

Almost surely, 2^{6066551009991} is an apocalyptic number.

6066551009991 is a deficient number, since it is larger than the sum of its proper divisors (2024859413049).

6066551009991 is a wasteful number, since it uses less digits than its factorization.

6066551009991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 668935765.

The product of its (nonzero) digits is 3936600, while the sum is 57.

The spelling of 6066551009991 in words is "six trillion, sixty-six billion, five hundred fifty-one million, nine thousand, nine hundred ninety-one".