164631044623 has 8 divisors (see below), whose sum is σ = 165347408160. Its totient is φ = 163916113920.

The previous prime is 164631044621. The next prime is 164631044693. The reversal of 164631044623 is 326440136461.

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 164631044623 - 2¹ = 164631044621 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 (164631044621) 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 7 ways as a sum of consecutive naturals, for example, 127590 + ... + 587827.

It is an arithmetic number, because the mean of its divisors is an integer number (20668426020).

Almost surely, 2^164631044623 is an apocalyptic number.

164631044623 is a deficient number, since it is larger than the sum of its proper divisors (716363537).

164631044623 is an equidigital number, since it uses as much as digits as its factorization.

164631044623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 716417.

The product of its (nonzero) digits is 248832, while the sum is 40.

The spelling of 164631044623 in words is "one hundred sixty-four billion, six hundred thirty-one million, forty-four thousand, six hundred twenty-three".