164250535065543 has 24 divisors (see below), whose sum is σ = 246064706274816. Its totient is φ = 105465868678800.

The previous prime is 164250535065517. The next prime is 164250535065563. The reversal of 164250535065543 is 345560535052461.

164250535065543 is a `hidden beast` number, since 1 + 6 + 4 + 2 + 5 + 0 + 5 + 35 + 0 + 65 + 543 = 666.

It is not a de Polignac number, because 164250535065543 - 2⁵ = 164250535065511 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 164250535065543.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164250535065563) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1394992305 + ... + 1395110042.

It is an arithmetic number, because the mean of its divisors is an integer number (10252696094784).

Almost surely, 2^{164250535065543} is an apocalyptic number.

164250535065543 is a deficient number, since it is larger than the sum of its proper divisors (81814171209273).

164250535065543 is a wasteful number, since it uses less digits than its factorization.

164250535065543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2790102595 (or 2790102592 counting only the distinct ones).

The product of its (nonzero) digits is 32400000, while the sum is 54.

The spelling of 164250535065543 in words is "one hundred sixty-four trillion, two hundred fifty billion, five hundred thirty-five million, sixty-five thousand, five hundred forty-three".