164555646555461 has 32 divisors (see below), whose sum is σ = 198485791795200. Its totient is φ = 133270411371840.

The previous prime is 164555646555457. The next prime is 164555646555539.

164555646555461 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 164555646555461 - 2² = 164555646555457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 164555646555391 and 164555646555400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164555646557461) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 715459466 + ... + 715689428.

It is an arithmetic number, because the mean of its divisors is an integer number (6202680993600).

Almost surely, 2^{164555646555461} is an apocalyptic number.

It is an amenable number.

164555646555461 is a deficient number, since it is larger than the sum of its proper divisors (33930145239739).

164555646555461 is a wasteful number, since it uses less digits than its factorization.

164555646555461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244209.

The product of its digits is 1296000000, while the sum is 68.

The spelling of 164555646555461 in words is "one hundred sixty-four trillion, five hundred fifty-five billion, six hundred forty-six million, five hundred fifty-five thousand, four hundred sixty-one".