1066355109 has 6 divisors (see below), whose sum is σ = 1540290726. Its totient is φ = 710903400.

The previous prime is 1066355099. The next prime is 1066355131. The reversal of 1066355109 is 9015536601.

1066355109 is a `hidden beast` number, since 1 + 0 + 6 + 635 + 5 + 10 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1066349025 + 6084 = 32655^2 + 78^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1066355109 is a prime.

It is a super-2 number, since 2×1066355109² = 2274226436980803762, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1066355149) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 59241942 + ... + 59241959.

It is an arithmetic number, because the mean of its divisors is an integer number (256715121).

Almost surely, 2^1066355109 is an apocalyptic number.

It is an amenable number.

1066355109 is a deficient number, since it is larger than the sum of its proper divisors (473935617).

1066355109 is a wasteful number, since it uses less digits than its factorization.

1066355109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118483907 (or 118483904 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 1066355109 is about 32655.0931555860. The cubic root of 1066355109 is about 1021.6464211799.

The spelling of 1066355109 in words is "one billion, sixty-six million, three hundred fifty-five thousand, one hundred nine".