2661630199 has 2 divisors, whose sum is σ = 2661630200. Its totient is φ = 2661630198.

The previous prime is 2661630133. The next prime is 2661630217. The reversal of 2661630199 is 9910361662.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2661630199 - 2⁷ = 2661630071 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2661630299) 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, 1330815099 + 1330815100.

It is an arithmetic number, because the mean of its divisors is an integer number (1330815100).

Almost surely, 2^2661630199 is an apocalyptic number.

2661630199 is a deficient number, since it is larger than the sum of its proper divisors (1).

2661630199 is an equidigital number, since it uses as much as digits as its factorization.

2661630199 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 2661630199 is about 51590.9895136738. The cubic root of 2661630199 is about 1385.8489755950.

The spelling of 2661630199 in words is "two billion, six hundred sixty-one million, six hundred thirty thousand, one hundred ninety-nine".