1156166066 has 16 divisors (see below), whose sum is σ = 1932163200. Its totient is φ = 514348080.

The previous prime is 1156166041. The next prime is 1156166071. The reversal of 1156166066 is 6606616511.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 558041 + ... + 560108.

It is an arithmetic number, because the mean of its divisors is an integer number (120760200).

Almost surely, 2^1156166066 is an apocalyptic number.

1156166066 is a deficient number, since it is larger than the sum of its proper divisors (775997134).

1156166066 is a wasteful number, since it uses less digits than its factorization.

1156166066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118209.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 1156166066 is about 34002.4420593580. The cubic root of 1156166066 is about 1049.5587158522.

The spelling of 1156166066 in words is "one billion, one hundred fifty-six million, one hundred sixty-six thousand, sixty-six".