6616232191 has 2 divisors, whose sum is σ = 6616232192. Its totient is φ = 6616232190.

The previous prime is 6616232179. The next prime is 6616232209. The reversal of 6616232191 is 1912326166.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6616232191 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6616232191.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6616232101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3308116095 + 3308116096.

It is an arithmetic number, because the mean of its divisors is an integer number (3308116096).

Almost surely, 2^6616232191 is an apocalyptic number.

6616232191 is a deficient number, since it is larger than the sum of its proper divisors (1).

6616232191 is an equidigital number, since it uses as much as digits as its factorization.

6616232191 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23328, while the sum is 37.

The square root of 6616232191 is about 81340.2249259246. The cubic root of 6616232191 is about 1877.3139730687.

The spelling of 6616232191 in words is "six billion, six hundred sixteen million, two hundred thirty-two thousand, one hundred ninety-one".