164843017085 has 16 divisors (see below), whose sum is σ = 200852929152. Its totient is φ = 129851601600.

The previous prime is 164843017067. The next prime is 164843017093. The reversal of 164843017085 is 580710348461.

It is not a de Polignac number, because 164843017085 - 2¹² = 164843012989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15626 + ... + 574395.

It is an arithmetic number, because the mean of its divisors is an integer number (12553308072).

Almost surely, 2^164843017085 is an apocalyptic number.

It is an amenable number.

164843017085 is a deficient number, since it is larger than the sum of its proper divisors (36009912067).

164843017085 is an equidigital number, since it uses as much as digits as its factorization.

164843017085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 590884.

The product of its (nonzero) digits is 645120, while the sum is 47.

The spelling of 164843017085 in words is "one hundred sixty-four billion, eight hundred forty-three million, seventeen thousand, eighty-five".