164249865357 has 64 divisors (see below), whose sum is σ = 231498328320. Its totient is φ = 103484620800.

The previous prime is 164249865317. The next prime is 164249865449. The reversal of 164249865357 is 753568942461.

It is a happy number.

It is not a de Polignac number, because 164249865357 - 2³⁰ = 163176123533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 164249865357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164249865317) 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 in 63 ways as a sum of consecutive naturals, for example, 248486607 + ... + 248487267.

It is an arithmetic number, because the mean of its divisors is an integer number (3617161380).

Almost surely, 2^164249865357 is an apocalyptic number.

It is an amenable number.

164249865357 is a deficient number, since it is larger than the sum of its proper divisors (67248462963).

164249865357 is a wasteful number, since it uses less digits than its factorization.

164249865357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214.

The product of its digits is 43545600, while the sum is 60.

The spelling of 164249865357 in words is "one hundred sixty-four billion, two hundred forty-nine million, eight hundred sixty-five thousand, three hundred fifty-seven".