164326268161 has 4 divisors (see below), whose sum is σ = 179265019824. Its totient is φ = 149387516500.

The previous prime is 164326268149. The next prime is 164326268177. The reversal of 164326268161 is 161862623461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 164326268161 - 2¹³ = 164326259969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164326268101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7469375815 + ... + 7469375836.

It is an arithmetic number, because the mean of its divisors is an integer number (44816254956).

Almost surely, 2^164326268161 is an apocalyptic number.

164326268161 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

164326268161 is a deficient number, since it is larger than the sum of its proper divisors (14938751663).

164326268161 is a wasteful number, since it uses less digits than its factorization.

164326268161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14938751662.

The product of its digits is 497664, while the sum is 46.

The spelling of 164326268161 in words is "one hundred sixty-four billion, three hundred twenty-six million, two hundred sixty-eight thousand, one hundred sixty-one".