164591480261 has 8 divisors (see below), whose sum is σ = 179496065280. Its totient is φ = 150007424112.

The previous prime is 164591480237. The next prime is 164591480281. The reversal of 164591480261 is 162084195461.

164591480261 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 164591480261 - 2³⁰ = 163517738437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164591480281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80131145 + ... + 80133198.

It is an arithmetic number, because the mean of its divisors is an integer number (22437008160).

Almost surely, 2^164591480261 is an apocalyptic number.

It is an amenable number.

164591480261 is a deficient number, since it is larger than the sum of its proper divisors (14904585019).

164591480261 is a wasteful number, since it uses less digits than its factorization.

164591480261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160264435.

The product of its (nonzero) digits is 414720, while the sum is 47.

The spelling of 164591480261 in words is "one hundred sixty-four billion, five hundred ninety-one million, four hundred eighty thousand, two hundred sixty-one".