6691205162889 has 48 divisors (see below), whose sum is σ = 10465337675520. Its totient is φ = 4095249373440.

The previous prime is 6691205162879. The next prime is 6691205162903. The reversal of 6691205162889 is 9882615021966.

6691205162889 is a `hidden beast` number, since 6 + 6 + 9 + 12 + 0 + 516 + 28 + 89 = 666.

It is not a de Polignac number, because 6691205162889 - 2⁵ = 6691205162857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6691205162879) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17855842 + ... + 18226724.

It is an arithmetic number, because the mean of its divisors is an integer number (218027868240).

Almost surely, 2^{6691205162889} is an apocalyptic number.

It is an amenable number.

6691205162889 is a deficient number, since it is larger than the sum of its proper divisors (3774132512631).

6691205162889 is a wasteful number, since it uses less digits than its factorization.

6691205162889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371742 (or 371739 counting only the distinct ones).

The product of its (nonzero) digits is 22394880, while the sum is 63.

The spelling of 6691205162889 in words is "six trillion, six hundred ninety-one billion, two hundred five million, one hundred sixty-two thousand, eight hundred eighty-nine".