1066072409929 has 2 divisors, whose sum is σ = 1066072409930. Its totient is φ = 1066072409928.

The previous prime is 1066072409921. The next prime is 1066072409999. The reversal of 1066072409929 is 9299042706601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1062295078329 + 3777331600 = 1030677^2 + 61460^2 .

It is a cyclic number.

It is not a de Polignac number, because 1066072409929 - 2³ = 1066072409921 is a prime.

It is a super-2 number, since 2×1066072409929² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1066072409929.

It is not a weakly prime, because it can be changed into another prime (1066072409921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 533036204964 + 533036204965.

It is an arithmetic number, because the mean of its divisors is an integer number (533036204965).

Almost surely, 2^{1066072409929} is an apocalyptic number.

It is an amenable number.

1066072409929 is a deficient number, since it is larger than the sum of its proper divisors (1).

1066072409929 is an equidigital number, since it uses as much as digits as its factorization.

1066072409929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2939328, while the sum is 55.

The spelling of 1066072409929 in words is "one trillion, sixty-six billion, seventy-two million, four hundred nine thousand, nine hundred twenty-nine".