165700487479 has 2 divisors, whose sum is σ = 165700487480. Its totient is φ = 165700487478.

The previous prime is 165700487473. The next prime is 165700487569. The reversal of 165700487479 is 974784007561.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165700487479 - 2³ = 165700487471 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165700487471) 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, 82850243739 + 82850243740.

It is an arithmetic number, because the mean of its divisors is an integer number (82850243740).

Almost surely, 2^165700487479 is an apocalyptic number.

165700487479 is a deficient number, since it is larger than the sum of its proper divisors (1).

165700487479 is an equidigital number, since it uses as much as digits as its factorization.

165700487479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11854080, while the sum is 58.

The spelling of 165700487479 in words is "one hundred sixty-five billion, seven hundred million, four hundred eighty-seven thousand, four hundred seventy-nine".