164374663 has 2 divisors, whose sum is σ = 164374664. Its totient is φ = 164374662.

The previous prime is 164374631. The next prime is 164374667. The reversal of 164374663 is 366473461.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (366473461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 164374663 - 2⁵ = 164374631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164374667) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82187331 + 82187332.

It is an arithmetic number, because the mean of its divisors is an integer number (82187332).

Almost surely, 2^164374663 is an apocalyptic number.

164374663 is a deficient number, since it is larger than the sum of its proper divisors (1).

164374663 is an equidigital number, since it uses as much as digits as its factorization.

164374663 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 40.

The square root of 164374663 is about 12820.8682623292. The cubic root of 164374663 is about 547.7868785608.

The spelling of 164374663 in words is "one hundred sixty-four million, three hundred seventy-four thousand, six hundred sixty-three".