164964928049 has 8 divisors (see below), whose sum is σ = 174688444008. Its totient is φ = 155243600640.

The previous prime is 164964928031. The next prime is 164964928057. The reversal of 164964928049 is 940829469461.

It can be written as a sum of positive squares in 4 ways, for example, as 82024960000 + 82939968049 = 286400^2 + 287993^2 .

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 164964928049 - 2⁸ = 164964927793 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 164964927982 and 164964928000.

It is not an unprimeable number, because it can be changed into a prime (164964928069) 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, 390662 + ... + 694655.

It is an arithmetic number, because the mean of its divisors is an integer number (21836055501).

Almost surely, 2^164964928049 is an apocalyptic number.

It is an amenable number.

164964928049 is a deficient number, since it is larger than the sum of its proper divisors (9723515959).

164964928049 is a wasteful number, since it uses less digits than its factorization.

164964928049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1094275.

The product of its (nonzero) digits is 26873856, while the sum is 62.

The spelling of 164964928049 in words is "one hundred sixty-four billion, nine hundred sixty-four million, nine hundred twenty-eight thousand, forty-nine".