164254314481 has 4 divisors (see below), whose sum is σ = 164290634352. Its totient is φ = 164217994612.

The previous prime is 164254314443. The next prime is 164254314509. The reversal of 164254314481 is 184413452461.

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 164254314481 - 2⁷ = 164254314353 is a prime.

It is a super-2 number, since 2×164254314481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164254314281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18153151 + ... + 18162196.

It is an arithmetic number, because the mean of its divisors is an integer number (41072658588).

Almost surely, 2^164254314481 is an apocalyptic number.

It is an amenable number.

164254314481 is a deficient number, since it is larger than the sum of its proper divisors (36319871).

164254314481 is an equidigital number, since it uses as much as digits as its factorization.

164254314481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36319870.

The product of its digits is 368640, while the sum is 43.

The spelling of 164254314481 in words is "one hundred sixty-four billion, two hundred fifty-four million, three hundred fourteen thousand, four hundred eighty-one".