164630572261 has 8 divisors (see below), whose sum is σ = 164947597920. Its totient is φ = 164313634992.

The previous prime is 164630572217. The next prime is 164630572283. The reversal of 164630572261 is 162275036461.

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

It is a cyclic number.

It is not a de Polignac number, because 164630572261 - 2¹⁷ = 164630441189 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 (164630570261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4637766 + ... + 4673128.

It is an arithmetic number, because the mean of its divisors is an integer number (20618449740).

Almost surely, 2^164630572261 is an apocalyptic number.

It is an amenable number.

164630572261 is a deficient number, since it is larger than the sum of its proper divisors (317025659).

164630572261 is an equidigital number, since it uses as much as digits as its factorization.

164630572261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44195.

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 164630572261 in words is "one hundred sixty-four billion, six hundred thirty million, five hundred seventy-two thousand, two hundred sixty-one".