164194028287 has 2 divisors, whose sum is σ = 164194028288. Its totient is φ = 164194028286.

The previous prime is 164194028279. The next prime is 164194028311. The reversal of 164194028287 is 782820491461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 164194028287 - 2³ = 164194028279 is a prime.

It is a super-2 number, since 2×164194028287² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (164194028087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82097014143 + 82097014144.

It is an arithmetic number, because the mean of its divisors is an integer number (82097014144).

Almost surely, 2^164194028287 is an apocalyptic number.

164194028287 is a deficient number, since it is larger than the sum of its proper divisors (1).

164194028287 is an equidigital number, since it uses as much as digits as its factorization.

164194028287 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1548288, while the sum is 52.

The spelling of 164194028287 in words is "one hundred sixty-four billion, one hundred ninety-four million, twenty-eight thousand, two hundred eighty-seven".