6615213203 has 2 divisors, whose sum is σ = 6615213204. Its totient is φ = 6615213202.

The previous prime is 6615213173. The next prime is 6615213217. The reversal of 6615213203 is 3023125166.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6615213203 - 2⁶ = 6615213139 is a prime.

It is a super-2 number, since 2×6615213203² = 87522091442291038418, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (6615213233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3307606601 + 3307606602.

It is an arithmetic number, because the mean of its divisors is an integer number (3307606602).

Almost surely, 2^6615213203 is an apocalyptic number.

6615213203 is a deficient number, since it is larger than the sum of its proper divisors (1).

6615213203 is an equidigital number, since it uses as much as digits as its factorization.

6615213203 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 6615213203 is about 81333.9609449829. The cubic root of 6615213203 is about 1877.2175909904.

Adding to 6615213203 its reverse (3023125166), we get a palindrome (9638338369).

The spelling of 6615213203 in words is "six billion, six hundred fifteen million, two hundred thirteen thousand, two hundred three".