1066134645 has 12 divisors (see below), whose sum is σ = 1847966796. Its totient is φ = 568605120.

The previous prime is 1066134607. The next prime is 1066134659. The reversal of 1066134645 is 5464316601.

It is a happy number.

1066134645 is a `hidden beast` number, since 1 + 0 + 6 + 6 + 1 + 3 + 4 + 645 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 176544369 + 889590276 = 13287^2 + 29826^2 .

It is not a de Polignac number, because 1066134645 - 2⁶ = 1066134581 is a prime.

It is a super-2 number, since 2×1066134645² = 2273286162538552050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11845896 + ... + 11845985.

It is an arithmetic number, because the mean of its divisors is an integer number (153997233).

Almost surely, 2^1066134645 is an apocalyptic number.

1066134645 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1066134645 is a deficient number, since it is larger than the sum of its proper divisors (781832151).

1066134645 is a wasteful number, since it uses less digits than its factorization.

1066134645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23691892 (or 23691889 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 1066134645 is about 32651.7173361525. The cubic root of 1066134645 is about 1021.5760094323.

The spelling of 1066134645 in words is "one billion, sixty-six million, one hundred thirty-four thousand, six hundred forty-five".