147666316939 has 2 divisors, whose sum is σ = 147666316940. Its totient is φ = 147666316938.

The previous prime is 147666316913. The next prime is 147666316991. The reversal of 147666316939 is 939613666741.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (939613666741) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 147666316939 - 2¹³ = 147666308747 is a prime.

It is not a weakly prime, because it can be changed into another prime (147666316439) 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, 73833158469 + 73833158470.

It is an arithmetic number, because the mean of its divisors is an integer number (73833158470).

Almost surely, 2^147666316939 is an apocalyptic number.

147666316939 is a deficient number, since it is larger than the sum of its proper divisors (1).

147666316939 is an equidigital number, since it uses as much as digits as its factorization.

147666316939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 26453952, while the sum is 61.

The spelling of 147666316939 in words is "one hundred forty-seven billion, six hundred sixty-six million, three hundred sixteen thousand, nine hundred thirty-nine".