164513160525061 has 4 divisors (see below), whose sum is σ = 164727091813900. Its totient is φ = 164299229236224.

The previous prime is 164513160525013. The next prime is 164513160525097. The reversal of 164513160525061 is 160525061315461.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 129186660692961 + 35326499832100 = 11366031^2 + 5943610^2 .

It is a cyclic number.

It is not a de Polignac number, because 164513160525061 - 2¹¹ = 164513160523013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164513160526061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106965643266 + ... + 106965644803.

It is an arithmetic number, because the mean of its divisors is an integer number (41181772953475).

Almost surely, 2^{164513160525061} is an apocalyptic number.

It is an amenable number.

164513160525061 is a deficient number, since it is larger than the sum of its proper divisors (213931288839).

164513160525061 is an equidigital number, since it uses as much as digits as its factorization.

164513160525061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213931288838.

The product of its (nonzero) digits is 648000, while the sum is 46.

The spelling of 164513160525061 in words is "one hundred sixty-four trillion, five hundred thirteen billion, one hundred sixty million, five hundred twenty-five thousand, sixty-one".