1066005004 has 24 divisors (see below), whose sum is σ = 1889722800. Its totient is φ = 526129344.

The previous prime is 1066005001. The next prime is 1066005019. The reversal of 1066005004 is 4005006601.

It is a super-2 number, since 2×1066005004² = 2272733337106080032, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1066005001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91662 + ... + 102634.

It is an arithmetic number, because the mean of its divisors is an integer number (78738450).

Almost surely, 2^1066005004 is an apocalyptic number.

It is an amenable number.

1066005004 is a deficient number, since it is larger than the sum of its proper divisors (823717796).

1066005004 is a wasteful number, since it uses less digits than its factorization.

1066005004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11289 (or 11287 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 1066005004 is about 32649.7320662820. The cubic root of 1066005004 is about 1021.5346001836.

The spelling of 1066005004 in words is "one billion, sixty-six million, five thousand, four".