164871073097 has 4 divisors (see below), whose sum is σ = 167573877636. Its totient is φ = 162168268560.

The previous prime is 164871073091. The next prime is 164871073183. The reversal of 164871073097 is 790370178461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 790370178461 = 828601 ⋅953861.

It can be written as a sum of positive squares in 2 ways, for example, as 94190065216 + 70681007881 = 306904^2 + 265859^2 .

It is a cyclic number.

It is not a de Polignac number, because 164871073097 - 2⁶ = 164871073033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164871073091) 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, 1351402178 + ... + 1351402299.

It is an arithmetic number, because the mean of its divisors is an integer number (41893469409).

Almost surely, 2^164871073097 is an apocalyptic number.

It is an amenable number.

164871073097 is a deficient number, since it is larger than the sum of its proper divisors (2702804539).

164871073097 is an equidigital number, since it uses as much as digits as its factorization.

164871073097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2702804538.

The product of its (nonzero) digits is 1778112, while the sum is 53.

The spelling of 164871073097 in words is "one hundred sixty-four billion, eight hundred seventy-one million, seventy-three thousand, ninety-seven".