1066565516 has 12 divisors (see below), whose sum is σ = 1976283288. Its totient is φ = 501913152.

The previous prime is 1066565497. The next prime is 1066565531. The reversal of 1066565516 is 6155656601.

It is a super-2 number, since 2×1066565516² = 2275123999840692512, which contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 7842326 + ... + 7842461.

It is an arithmetic number, because the mean of its divisors is an integer number (164690274).

Almost surely, 2^1066565516 is an apocalyptic number.

It is an amenable number.

1066565516 is a deficient number, since it is larger than the sum of its proper divisors (909717772).

1066565516 is a wasteful number, since it uses less digits than its factorization.

1066565516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15684808 (or 15684806 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 41.

The square root of 1066565516 is about 32658.3146533926. The cubic root of 1066565516 is about 1021.7136118746.

The spelling of 1066565516 in words is "one billion, sixty-six million, five hundred sixty-five thousand, five hundred sixteen".