1066919701 has 2 divisors, whose sum is σ = 1066919702. Its totient is φ = 1066919700.

The previous prime is 1066919681. The next prime is 1066919713. The reversal of 1066919701 is 1079196601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 720922500 + 345997201 = 26850^2 + 18601^2 .

It is a cyclic number.

It is not a de Polignac number, because 1066919701 - 2⁵ = 1066919669 is a prime.

It is a super-2 number, since 2×1066919701² = 2276635296763858802, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1066919731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533459850 + 533459851.

It is an arithmetic number, because the mean of its divisors is an integer number (533459851).

Almost surely, 2^1066919701 is an apocalyptic number.

It is an amenable number.

1066919701 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066919701 is an equidigital number, since it uses as much as digits as its factorization.

1066919701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20412, while the sum is 40.

The square root of 1066919701 is about 32663.7367886774. The cubic root of 1066919701 is about 1021.8266962188.

The spelling of 1066919701 in words is "one billion, sixty-six million, nine hundred nineteen thousand, seven hundred one".