164851088585 has 4 divisors (see below), whose sum is σ = 197821306308. Its totient is φ = 131880870864.

The previous prime is 164851088531. The next prime is 164851088593. The reversal of 164851088585 is 585880158461.

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 19401146944 + 145449941641 = 139288^2 + 381379^2 .

It is a cyclic number.

It is not a de Polignac number, because 164851088585 - 2³⁴ = 147671219401 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16485108854 + ... + 16485108863.

It is an arithmetic number, because the mean of its divisors is an integer number (49455326577).

Almost surely, 2^164851088585 is an apocalyptic number.

It is an amenable number.

164851088585 is a deficient number, since it is larger than the sum of its proper divisors (32970217723).

164851088585 is an equidigital number, since it uses as much as digits as its factorization.

164851088585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32970217722.

The product of its (nonzero) digits is 12288000, while the sum is 59.

The spelling of 164851088585 in words is "one hundred sixty-four billion, eight hundred fifty-one million, eighty-eight thousand, five hundred eighty-five".