1066678636 has 24 divisors (see below), whose sum is σ = 1984608864. Its totient is φ = 500522880.

The previous prime is 1066678621. The next prime is 1066678649. The reversal of 1066678636 is 6368766601.

It is a super-2 number, since 2×1066678636² = 2275606624997640992, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1066678636.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104505 + ... + 114256.

It is an arithmetic number, because the mean of its divisors is an integer number (82692036).

Almost surely, 2^1066678636 is an apocalyptic number.

It is an amenable number.

1066678636 is a deficient number, since it is larger than the sum of its proper divisors (917930228).

1066678636 is a wasteful number, since it uses less digits than its factorization.

1066678636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218841 (or 218839 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 49.

The square root of 1066678636 is about 32660.0464788402. The cubic root of 1066678636 is about 1021.7497315992.

The spelling of 1066678636 in words is "one billion, sixty-six million, six hundred seventy-eight thousand, six hundred thirty-six".