1066709009055 has 64 divisors (see below), whose sum is σ = 1729813542912. Its totient is φ = 561270743040.

The previous prime is 1066709008969. The next prime is 1066709009071. The reversal of 1066709009055 is 5509009076601.

It is not a de Polignac number, because 1066709009055 - 2⁷ = 1066709008927 is a prime.

It is a super-2 number, since 2×1066709009055² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1066709008995 and 1066709009013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 686869159 + ... + 686870711.

It is an arithmetic number, because the mean of its divisors is an integer number (27028336608).

Almost surely, 2^{1066709009055} is an apocalyptic number.

1066709009055 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1066709009055 is a deficient number, since it is larger than the sum of its proper divisors (663104533857).

1066709009055 is a wasteful number, since it uses less digits than its factorization.

1066709009055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3288.

The product of its (nonzero) digits is 510300, while the sum is 48.

The spelling of 1066709009055 in words is "one trillion, sixty-six billion, seven hundred nine million, nine thousand, fifty-five".