164243046566111 has 4 divisors (see below), whose sum is σ = 164246939822952. Its totient is φ = 164239153309272.

The previous prime is 164243046566087. The next prime is 164243046566219. The reversal of 164243046566111 is 111665640342461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 164243046566111 - 2¹⁸ = 164243046303967 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 164243046566111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164243046566311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1946565140 + ... + 1946649513.

It is an arithmetic number, because the mean of its divisors is an integer number (41061734955738).

Almost surely, 2^{164243046566111} is an apocalyptic number.

164243046566111 is a deficient number, since it is larger than the sum of its proper divisors (3893256841).

164243046566111 is an equidigital number, since it uses as much as digits as its factorization.

164243046566111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3893256840.

The product of its (nonzero) digits is 2488320, while the sum is 50.

The spelling of 164243046566111 in words is "one hundred sixty-four trillion, two hundred forty-three billion, forty-six million, five hundred sixty-six thousand, one hundred eleven".