5991157171 has 2 divisors, whose sum is σ = 5991157172. Its totient is φ = 5991157170.

The previous prime is 5991157129. The next prime is 5991157177. The reversal of 5991157171 is 1717511995.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5991157171 - 2¹⁹ = 5990632883 is a prime.

It is not a weakly prime, because it can be changed into another prime (5991157177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2995578585 + 2995578586.

It is an arithmetic number, because the mean of its divisors is an integer number (2995578586).

Almost surely, 2^5991157171 is an apocalyptic number.

5991157171 is a deficient number, since it is larger than the sum of its proper divisors (1).

5991157171 is an equidigital number, since it uses as much as digits as its factorization.

5991157171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 99225, while the sum is 46.

The square root of 5991157171 is about 77402.5656616110. The cubic root of 5991157171 is about 1816.2274602165.

The spelling of 5991157171 in words is "five billion, nine hundred ninety-one million, one hundred fifty-seven thousand, one hundred seventy-one".