1161268066 has 16 divisors (see below), whose sum is σ = 1998682560. Its totient is φ = 495702000.

The previous prime is 1161268027. The next prime is 1161268099. The reversal of 1161268066 is 6608621611.

It is a super-2 number, since 2×1161268066² = 2697087042222760712, which contains 22 as substring.

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, 161721 + ... + 168748.

It is an arithmetic number, because the mean of its divisors is an integer number (124917660).

Almost surely, 2^1161268066 is an apocalyptic number.

1161268066 is a deficient number, since it is larger than the sum of its proper divisors (837414494).

1161268066 is a wasteful number, since it uses less digits than its factorization.

1161268066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 330729.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 1161268066 is about 34077.3834969764. The cubic root of 1161268066 is about 1051.1003026667.

Adding to 1161268066 its reverse (6608621611), we get a palindrome (7769889677).

The spelling of 1161268066 in words is "one billion, one hundred sixty-one million, two hundred sixty-eight thousand, sixty-six".