1165606339 has 2 divisors, whose sum is σ = 1165606340. Its totient is φ = 1165606338.

The previous prime is 1165606291. The next prime is 1165606399. The reversal of 1165606339 is 9336065611.

It is a weak prime.

It is an emirp because it is prime and its reverse (9336065611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1165606339 - 2¹⁵ = 1165573571 is a prime.

It is not a weakly prime, because it can be changed into another prime (1165606399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 582803169 + 582803170.

It is an arithmetic number, because the mean of its divisors is an integer number (582803170).

Almost surely, 2^1165606339 is an apocalyptic number.

1165606339 is a deficient number, since it is larger than the sum of its proper divisors (1).

1165606339 is an equidigital number, since it uses as much as digits as its factorization.

1165606339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87480, while the sum is 40.

The square root of 1165606339 is about 34140.9774171742. The cubic root of 1165606339 is about 1052.4075786168.

The spelling of 1165606339 in words is "one billion, one hundred sixty-five million, six hundred six thousand, three hundred thirty-nine".