164846987672 has 8 divisors (see below), whose sum is σ = 309088101900. Its totient is φ = 82423493832.

The previous prime is 164846987663. The next prime is 164846987713. The reversal of 164846987672 is 276789648461.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 10302936722 + ... + 10302936737.

Almost surely, 2^164846987672 is an apocalyptic number.

It is an amenable number.

164846987672 is a deficient number, since it is larger than the sum of its proper divisors (144241114228).

164846987672 is a wasteful number, since it uses less digits than its factorization.

164846987672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20605873465 (or 20605873461 counting only the distinct ones).

The product of its digits is 195084288, while the sum is 68.

The spelling of 164846987672 in words is "one hundred sixty-four billion, eight hundred forty-six million, nine hundred eighty-seven thousand, six hundred seventy-two".