6668071475 has 24 divisors (see below), whose sum is σ = 8987706000. Its totient is φ = 4878069120.

The previous prime is 6668071469. The next prime is 6668071477. The reversal of 6668071475 is 5741708666.

It is not a de Polignac number, because 6668071475 - 2⁸ = 6668071219 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6668071477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 61100 + ... + 130649.

It is an arithmetic number, because the mean of its divisors is an integer number (374487750).

Almost surely, 2^6668071475 is an apocalyptic number.

6668071475 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

6668071475 is a deficient number, since it is larger than the sum of its proper divisors (2319634525).

6668071475 is a wasteful number, since it uses less digits than its factorization.

6668071475 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191879 (or 191874 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 50.

The square root of 6668071475 is about 81658.2602986373. The cubic root of 6668071475 is about 1882.2042460031.

The spelling of 6668071475 in words is "six billion, six hundred sixty-eight million, seventy-one thousand, four hundred seventy-five".