164936073913 has 4 divisors (see below), whose sum is σ = 177623464228. Its totient is φ = 152248683600.

The previous prime is 164936073859. The next prime is 164936073919. The reversal of 164936073913 is 319370639461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 319370639461 = 5393 ⋅59219477.

It can be written as a sum of positive squares in 2 ways, for example, as 59432588944 + 105503484969 = 243788^2 + 324813^2 .

It is a de Polignac number, because none of the positive numbers 2^k-164936073913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164936073919) 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, 6343695138 + ... + 6343695163.

It is an arithmetic number, because the mean of its divisors is an integer number (44405866057).

Almost surely, 2^164936073913 is an apocalyptic number.

164936073913 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

164936073913 is a deficient number, since it is larger than the sum of its proper divisors (12687390315).

164936073913 is a wasteful number, since it uses less digits than its factorization.

164936073913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12687390314.

The product of its (nonzero) digits is 2204496, while the sum is 52.

The spelling of 164936073913 in words is "one hundred sixty-four billion, nine hundred thirty-six million, seventy-three thousand, nine hundred thirteen".