7666836337 has 2 divisors, whose sum is σ = 7666836338. Its totient is φ = 7666836336.

The previous prime is 7666836323. The next prime is 7666836379. The reversal of 7666836337 is 7336386667.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4291691121 + 3375145216 = 65511^2 + 58096^2 .

It is a cyclic number.

It is not a de Polignac number, because 7666836337 - 2¹¹ = 7666834289 is a prime.

It is not a weakly prime, because it can be changed into another prime (7666036337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3833418168 + 3833418169.

It is an arithmetic number, because the mean of its divisors is an integer number (3833418169).

Almost surely, 2^7666836337 is an apocalyptic number.

It is an amenable number.

7666836337 is a deficient number, since it is larger than the sum of its proper divisors (1).

7666836337 is an equidigital number, since it uses as much as digits as its factorization.

7666836337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13716864, while the sum is 55.

The square root of 7666836337 is about 87560.4724576107. The cubic root of 7666836337 is about 1971.8417792386.

The spelling of 7666836337 in words is "seven billion, six hundred sixty-six million, eight hundred thirty-six thousand, three hundred thirty-seven".