3666300178973 has 2 divisors, whose sum is σ = 3666300178974. Its totient is φ = 3666300178972.

The previous prime is 3666300178889. The next prime is 3666300178993. The reversal of 3666300178973 is 3798710036663.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3647591957689 + 18708221284 = 1909867^2 + 136778^2 .

It is a cyclic number.

It is not a de Polignac number, because 3666300178973 - 2¹² = 3666300174877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3666300178993) 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, 1833150089486 + 1833150089487.

It is an arithmetic number, because the mean of its divisors is an integer number (1833150089487).

Almost surely, 2^{3666300178973} is an apocalyptic number.

It is an amenable number.

3666300178973 is a deficient number, since it is larger than the sum of its proper divisors (1).

3666300178973 is an equidigital number, since it uses as much as digits as its factorization.

3666300178973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20575296, while the sum is 59.

The spelling of 3666300178973 in words is "three trillion, six hundred sixty-six billion, three hundred million, one hundred seventy-eight thousand, nine hundred seventy-three".