164223344897 has 8 divisors (see below), whose sum is σ = 169270711656. Its totient is φ = 159208025472.

The previous prime is 164223344863. The next prime is 164223344899. The reversal of 164223344897 is 798443322461.

It can be written as a sum of positive squares in 4 ways, for example, as 25306128241 + 138917216656 = 159079^2 + 372716^2 .

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 164223344897 - 2³⁰ = 163149603073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164223344899) 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, 8001428 + ... + 8021925.

It is an arithmetic number, because the mean of its divisors is an integer number (21158838957).

Almost surely, 2^164223344897 is an apocalyptic number.

It is an amenable number.

164223344897 is a deficient number, since it is larger than the sum of its proper divisors (5047366759).

164223344897 is a wasteful number, since it uses less digits than its factorization.

164223344897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16023667.

The product of its digits is 6967296, while the sum is 53.

The spelling of 164223344897 in words is "one hundred sixty-four billion, two hundred twenty-three million, three hundred forty-four thousand, eight hundred ninety-seven".