164164340043 has 18 divisors (see below), whose sum is σ = 260642925452. Its totient is φ = 99493538760.

The previous prime is 164164340027. The next prime is 164164340051. The reversal of 164164340043 is 340043461461.

164164340043 is a `hidden beast` number, since 1 + 6 + 4 + 1 + 643 + 4 + 0 + 0 + 4 + 3 = 666.

It is not a de Polignac number, because 164164340043 - 2⁴ = 164164340027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (164164340003) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 75372805 + ... + 75374982.

Almost surely, 2^164164340043 is an apocalyptic number.

164164340043 is a deficient number, since it is larger than the sum of its proper divisors (96478585409).

164164340043 is a wasteful number, since it uses less digits than its factorization.

164164340043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150747815 (or 150747801 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

The spelling of 164164340043 in words is "one hundred sixty-four billion, one hundred sixty-four million, three hundred forty thousand, forty-three".