5191166501 has 2 divisors, whose sum is σ = 5191166502. Its totient is φ = 5191166500.

The previous prime is 5191166471. The next prime is 5191166527. The reversal of 5191166501 is 1056611915.

5191166501 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5184144001 + 7022500 = 72001^2 + 2650^2 .

It is a cyclic number.

It is not a de Polignac number, because 5191166501 - 2¹⁰ = 5191165477 is a prime.

It is a super-2 number, since 2×5191166501² = 53896419282209166002, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5101166501) 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 as a sum of consecutive naturals, namely, 2595583250 + 2595583251.

It is an arithmetic number, because the mean of its divisors is an integer number (2595583251).

Almost surely, 2^5191166501 is an apocalyptic number.

It is an amenable number.

5191166501 is a deficient number, since it is larger than the sum of its proper divisors (1).

5191166501 is an equidigital number, since it uses as much as digits as its factorization.

5191166501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8100, while the sum is 35.

The square root of 5191166501 is about 72049.7501799972. The cubic root of 5191166501 is about 1731.4966389812.

The spelling of 5191166501 in words is "five billion, one hundred ninety-one million, one hundred sixty-six thousand, five hundred one".