1629493616171 has 2 divisors, whose sum is σ = 1629493616172. Its totient is φ = 1629493616170.

The previous prime is 1629493616137. The next prime is 1629493616221. The reversal of 1629493616171 is 1716163949261.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1629493616171 - 2²² = 1629489421867 is a prime.

It is not a weakly prime, because it can be changed into another prime (1629493616671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 814746808085 + 814746808086.

It is an arithmetic number, because the mean of its divisors is an integer number (814746808086).

Almost surely, 2^{1629493616171} is an apocalyptic number.

1629493616171 is a deficient number, since it is larger than the sum of its proper divisors (1).

1629493616171 is an equidigital number, since it uses as much as digits as its factorization.

1629493616171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2939328, while the sum is 56.

The spelling of 1629493616171 in words is "one trillion, six hundred twenty-nine billion, four hundred ninety-three million, six hundred sixteen thousand, one hundred seventy-one".