366667635493 has 2 divisors, whose sum is σ = 366667635494. Its totient is φ = 366667635492.

The previous prime is 366667635413. The next prime is 366667635527. The reversal of 366667635493 is 394536766663.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 312501124324 + 54166511169 = 559018^2 + 232737^2 .

It is a cyclic number.

It is not a de Polignac number, because 366667635493 - 2³⁷ = 229228682021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (366667635413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 183333817746 + 183333817747.

It is an arithmetic number, because the mean of its divisors is an integer number (183333817747).

Almost surely, 2^366667635493 is an apocalyptic number.

It is an amenable number.

366667635493 is a deficient number, since it is larger than the sum of its proper divisors (1).

366667635493 is an equidigital number, since it uses as much as digits as its factorization.

366667635493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 264539520, while the sum is 64.

The spelling of 366667635493 in words is "three hundred sixty-six billion, six hundred sixty-seven million, six hundred thirty-five thousand, four hundred ninety-three".