165085307579 has 2 divisors, whose sum is σ = 165085307580. Its totient is φ = 165085307578.

The previous prime is 165085307561. The next prime is 165085307603. The reversal of 165085307579 is 975703580561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165085307579 - 2¹⁶ = 165085242043 is a prime.

It is not a weakly prime, because it can be changed into another prime (165085307509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82542653789 + 82542653790.

It is an arithmetic number, because the mean of its divisors is an integer number (82542653790).

Almost surely, 2^165085307579 is an apocalyptic number.

165085307579 is a deficient number, since it is larger than the sum of its proper divisors (1).

165085307579 is an equidigital number, since it uses as much as digits as its factorization.

165085307579 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7938000, while the sum is 56.

The spelling of 165085307579 in words is "one hundred sixty-five billion, eighty-five million, three hundred seven thousand, five hundred seventy-nine".