164295856519 has 2 divisors, whose sum is σ = 164295856520. Its totient is φ = 164295856518.

The previous prime is 164295856471. The next prime is 164295856523. The reversal of 164295856519 is 915658592461.

It is a strong prime.

It is an emirp because it is prime and its reverse (915658592461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164295856519 - 2³³ = 155705921927 is a prime.

It is a super-2 number, since 2×164295856519² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164295856559) 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, 82147928259 + 82147928260.

It is an arithmetic number, because the mean of its divisors is an integer number (82147928260).

Almost surely, 2^164295856519 is an apocalyptic number.

164295856519 is a deficient number, since it is larger than the sum of its proper divisors (1).

164295856519 is an equidigital number, since it uses as much as digits as its factorization.

164295856519 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328000, while the sum is 61.

The spelling of 164295856519 in words is "one hundred sixty-four billion, two hundred ninety-five million, eight hundred fifty-six thousand, five hundred nineteen".