1066380173 has 2 divisors, whose sum is σ = 1066380174. Its totient is φ = 1066380172.

The previous prime is 1066380167. The next prime is 1066380179. The reversal of 1066380173 is 3710836601.

It is a balanced prime because it is at equal distance from previous prime (1066380167) and next prime (1066380179).

It can be written as a sum of positive squares in only one way, i.e., 651117289 + 415262884 = 25517^2 + 20378^2 .

It is an emirp because it is prime and its reverse (3710836601) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1066380173 - 2²² = 1062185869 is a prime.

It is a super-2 number, since 2×1066380173² = 2274333346735019858, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1066380179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533190086 + 533190087.

It is an arithmetic number, because the mean of its divisors is an integer number (533190087).

Almost surely, 2^1066380173 is an apocalyptic number.

It is an amenable number.

1066380173 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066380173 is an equidigital number, since it uses as much as digits as its factorization.

1066380173 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 35.

The square root of 1066380173 is about 32655.4769219499. The cubic root of 1066380173 is about 1021.6544255008.

The spelling of 1066380173 in words is "one billion, sixty-six million, three hundred eighty thousand, one hundred seventy-three".