161379737339 has 2 divisors, whose sum is σ = 161379737340. Its totient is φ = 161379737338.

The previous prime is 161379737333. The next prime is 161379737357. The reversal of 161379737339 is 933737973161.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-161379737339 is a prime.

It is not a weakly prime, because it can be changed into another prime (161379737333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 80689868669 + 80689868670.

It is an arithmetic number, because the mean of its divisors is an integer number (80689868670).

Almost surely, 2^161379737339 is an apocalyptic number.

161379737339 is a deficient number, since it is larger than the sum of its proper divisors (1).

161379737339 is an equidigital number, since it uses as much as digits as its factorization.

161379737339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13502538, while the sum is 59.

The spelling of 161379737339 in words is "one hundred sixty-one billion, three hundred seventy-nine million, seven hundred thirty-seven thousand, three hundred thirty-nine".