164066377 has 2 divisors, whose sum is σ = 164066378. Its totient is φ = 164066376.

The previous prime is 164066339. The next prime is 164066407. The reversal of 164066377 is 773660461.

164066377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 155650576 + 8415801 = 12476^2 + 2901^2 .

It is a cyclic number.

It is not a de Polignac number, because 164066377 - 2¹⁵ = 164033609 is a prime.

It is a super-2 number, since 2×164066377² = 53835552123812258, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (164066327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82033188 + 82033189.

It is an arithmetic number, because the mean of its divisors is an integer number (82033189).

Almost surely, 2^164066377 is an apocalyptic number.

It is an amenable number.

164066377 is a deficient number, since it is larger than the sum of its proper divisors (1).

164066377 is an equidigital number, since it uses as much as digits as its factorization.

164066377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 164066377 is about 12808.8397991387. The cubic root of 164066377 is about 547.4442046795. Note that the first 3 decimals are identical.

The spelling of 164066377 in words is "one hundred sixty-four million, sixty-six thousand, three hundred seventy-seven".