6667620313 has 2 divisors, whose sum is σ = 6667620314. Its totient is φ = 6667620312.

The previous prime is 6667620299. The next prime is 6667620317. The reversal of 6667620313 is 3130267666.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6007490064 + 660130249 = 77508^2 + 25693^2 .

It is a cyclic number.

It is not a de Polignac number, because 6667620313 - 2⁹ = 6667619801 is a prime.

It is not a weakly prime, because it can be changed into another prime (6667620317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3333810156 + 3333810157.

It is an arithmetic number, because the mean of its divisors is an integer number (3333810157).

Almost surely, 2^6667620313 is an apocalyptic number.

It is an amenable number.

6667620313 is a deficient number, since it is larger than the sum of its proper divisors (1).

6667620313 is an equidigital number, since it uses as much as digits as its factorization.

6667620313 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 40.

The square root of 6667620313 is about 81655.4977512231. The cubic root of 6667620313 is about 1882.1617950392.

Adding to 6667620313 its reverse (3130267666), we get a palindrome (9797887979).

The spelling of 6667620313 in words is "six billion, six hundred sixty-seven million, six hundred twenty thousand, three hundred thirteen".