164866489473 has 16 divisors (see below), whose sum is σ = 251258542976. Its totient is φ = 94196891520.

The previous prime is 164866489457. The next prime is 164866489477. The reversal of 164866489473 is 374984668461.

164866489473 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 164866489473 - 2⁴ = 164866489457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164866489477) 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 15 ways as a sum of consecutive naturals, for example, 359308 + ... + 677373.

It is an arithmetic number, because the mean of its divisors is an integer number (15703658936).

Almost surely, 2^164866489473 is an apocalyptic number.

It is an amenable number.

164866489473 is a deficient number, since it is larger than the sum of its proper divisors (86392053503).

164866489473 is a wasteful number, since it uses less digits than its factorization.

164866489473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044264.

The product of its digits is 167215104, while the sum is 66.

The spelling of 164866489473 in words is "one hundred sixty-four billion, eight hundred sixty-six million, four hundred eighty-nine thousand, four hundred seventy-three".