164264995139 has 4 divisors (see below), whose sum is σ = 187731423024. Its totient is φ = 140798567256.

The previous prime is 164264995129. The next prime is 164264995183. The reversal of 164264995139 is 931599462461.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 931599462461 = 79 ⋅11792398259.

It is a cyclic number.

It is not a de Polignac number, because 164264995139 - 2²⁴ = 164248217923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164264995109) 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, 11733213932 + ... + 11733213945.

It is an arithmetic number, because the mean of its divisors is an integer number (46932855756).

Almost surely, 2^164264995139 is an apocalyptic number.

164264995139 is a deficient number, since it is larger than the sum of its proper divisors (23466427885).

164264995139 is an equidigital number, since it uses as much as digits as its factorization.

164264995139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23466427884.

The product of its digits is 12597120, while the sum is 59.

The spelling of 164264995139 in words is "one hundred sixty-four billion, two hundred sixty-four million, nine hundred ninety-five thousand, one hundred thirty-nine".