6666610453 has 2 divisors, whose sum is σ = 6666610454. Its totient is φ = 6666610452.

The previous prime is 6666610387. The next prime is 6666610487. The reversal of 6666610453 is 3540166666.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4506034129 + 2160576324 = 67127^2 + 46482^2 .

It is a cyclic number.

It is not a de Polignac number, because 6666610453 - 2⁹ = 6666609941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6666610253) 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, 3333305226 + 3333305227.

It is an arithmetic number, because the mean of its divisors is an integer number (3333305227).

Almost surely, 2^6666610453 is an apocalyptic number.

It is an amenable number.

6666610453 is a deficient number, since it is larger than the sum of its proper divisors (1).

6666610453 is an equidigital number, since it uses as much as digits as its factorization.

6666610453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 43.

The square root of 6666610453 is about 81649.3138550472. The cubic root of 6666610453 is about 1882.0667678386.

The spelling of 6666610453 in words is "six billion, six hundred sixty-six million, six hundred ten thousand, four hundred fifty-three".