164160643 has 2 divisors, whose sum is σ = 164160644. Its totient is φ = 164160642.

The previous prime is 164160641. The next prime is 164160697. The reversal of 164160643 is 346061461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 164160643 - 2¹ = 164160641 is a prime.

Together with 164160641, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (164160641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82080321 + 82080322.

It is an arithmetic number, because the mean of its divisors is an integer number (82080322).

Almost surely, 2^164160643 is an apocalyptic number.

164160643 is a deficient number, since it is larger than the sum of its proper divisors (1).

164160643 is an equidigital number, since it uses as much as digits as its factorization.

164160643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 164160643 is about 12812.5189951079. The cubic root of 164160643 is about 547.5490311447.

The spelling of 164160643 in words is "one hundred sixty-four million, one hundred sixty thousand, six hundred forty-three".