164066564043 has 16 divisors (see below), whose sum is σ = 244975452160. Its totient is φ = 108516465288.

The previous prime is 164066563993. The next prime is 164066564059. The reversal of 164066564043 is 340465660461.

164066564043 is a `hidden beast` number, since 1 + 6 + 40 + 6 + 6 + 564 + 0 + 43 = 666.

It is not a de Polignac number, because 164066564043 - 2¹⁰ = 164066563019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 164066564043.

It is not an unprimeable number, because it can be changed into a prime (164066564243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23919955 + ... + 23926812.

It is an arithmetic number, because the mean of its divisors is an integer number (15310965760).

Almost surely, 2^164066564043 is an apocalyptic number.

164066564043 is a deficient number, since it is larger than the sum of its proper divisors (80908888117).

164066564043 is a wasteful number, since it uses less digits than its factorization.

164066564043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47846903 (or 47846897 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 45.

The spelling of 164066564043 in words is "one hundred sixty-four billion, sixty-six million, five hundred sixty-four thousand, forty-three".