164351434663633 has 16 divisors (see below), whose sum is σ = 187882600919040. Its totient is φ = 140833371344976.

The previous prime is 164351434663627. The next prime is 164351434663643. The reversal of 164351434663633 is 336366434153461.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164351434663633 is a prime.

It is a super-2 number, since 2×164351434663633² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164351434663643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 372510078 + ... + 372951016.

It is an arithmetic number, because the mean of its divisors is an integer number (11742662557440).

Almost surely, 2^{164351434663633} is an apocalyptic number.

It is an amenable number.

164351434663633 is a deficient number, since it is larger than the sum of its proper divisors (23531166255407).

164351434663633 is an equidigital number, since it uses as much as digits as its factorization.

164351434663633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 455676.

The product of its digits is 100776960, while the sum is 58.

The spelling of 164351434663633 in words is "one hundred sixty-four trillion, three hundred fifty-one billion, four hundred thirty-four million, six hundred sixty-three thousand, six hundred thirty-three".