191600667217427 has 6 divisors (see below), whose sum is σ = 207472911839172. Its totient is φ = 176862154354392.

The previous prime is 191600667217411. The next prime is 191600667217447. The reversal of 191600667217427 is 724712766006191.

It is not a de Polignac number, because 191600667217427 - 2⁴ = 191600667217411 is a prime.

It is a super-3 number, since 3×191600667217427³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (191600667217447) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 566865879173 + ... + 566865879510.

It is an arithmetic number, because the mean of its divisors is an integer number (34578818639862).

Almost surely, 2^{191600667217427} is an apocalyptic number.

191600667217427 is a deficient number, since it is larger than the sum of its proper divisors (15872244621745).

191600667217427 is a wasteful number, since it uses less digits than its factorization.

191600667217427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133731758709 (or 1133731758696 counting only the distinct ones).

The product of its (nonzero) digits is 10668672, while the sum is 59.

The spelling of 191600667217427 in words is "one hundred ninety-one trillion, six hundred billion, six hundred sixty-seven million, two hundred seventeen thousand, four hundred twenty-seven".