164560500041521 has 8 divisors (see below), whose sum is σ = 166411490999040. Its totient is φ = 162709553452512.

The previous prime is 164560500041501. The next prime is 164560500041551. The reversal of 164560500041521 is 125140005065461.

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 164560500041521 - 2⁵ = 164560500041489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164560500041501) 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 7 ways as a sum of consecutive naturals, for example, 3604245 + ... + 18496258.

It is an arithmetic number, because the mean of its divisors is an integer number (20801436374880).

Almost surely, 2^{164560500041521} is an apocalyptic number.

It is an amenable number.

164560500041521 is a deficient number, since it is larger than the sum of its proper divisors (1850990957519).

164560500041521 is an equidigital number, since it uses as much as digits as its factorization.

164560500041521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22184255.

The product of its (nonzero) digits is 144000, while the sum is 40.

The spelling of 164560500041521 in words is "one hundred sixty-four trillion, five hundred sixty billion, five hundred million, forty-one thousand, five hundred twenty-one".