1066645146 has 32 divisors (see below), whose sum is σ = 2478019968. Its totient is φ = 299759040.

The previous prime is 1066645091. The next prime is 1066645157. The reversal of 1066645146 is 6415466601.

It is a happy number.

It is a super-2 number, since 2×1066645146² = 2275463734970722632, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 205605 + ... + 210728.

It is an arithmetic number, because the mean of its divisors is an integer number (77438124).

Almost surely, 2^1066645146 is an apocalyptic number.

1066645146 is an abundant number, since it is smaller than the sum of its proper divisors (1411374822).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1066645146 is a wasteful number, since it uses less digits than its factorization.

1066645146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416406.

The product of its (nonzero) digits is 103680, while the sum is 39.

The square root of 1066645146 is about 32659.5337688706. The cubic root of 1066645146 is about 1021.7390383578.

The spelling of 1066645146 in words is "one billion, sixty-six million, six hundred forty-five thousand, one hundred forty-six".