164750729219 has 8 divisors (see below), whose sum is σ = 167593884720. Its totient is φ = 161909266176.

The previous prime is 164750729203. The next prime is 164750729257. The reversal of 164750729219 is 912927057461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 164750729219 - 2⁴ = 164750729203 is a prime.

It is a super-2 number, since 2×164750729219² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164750729279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 225962 + ... + 616895.

It is an arithmetic number, because the mean of its divisors is an integer number (20949235590).

Almost surely, 2^164750729219 is an apocalyptic number.

164750729219 is a deficient number, since it is larger than the sum of its proper divisors (2843155501).

164750729219 is an equidigital number, since it uses as much as digits as its factorization.

164750729219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846229.

The product of its (nonzero) digits is 1905120, while the sum is 53.

The spelling of 164750729219 in words is "one hundred sixty-four billion, seven hundred fifty million, seven hundred twenty-nine thousand, two hundred nineteen".