1161146666 has 16 divisors (see below), whose sum is σ = 1759592160. Its totient is φ = 574626000.

The previous prime is 1161146641. The next prime is 1161146669. The reversal of 1161146666 is 6666411611.

It is not an unprimeable number, because it can be changed into a prime (1161146669) 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, 355541 + ... + 358791.

It is an arithmetic number, because the mean of its divisors is an integer number (109974510).

Almost surely, 2^1161146666 is an apocalyptic number.

1161146666 is a deficient number, since it is larger than the sum of its proper divisors (598445494).

1161146666 is a wasteful number, since it uses less digits than its factorization.

1161146666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5029.

The product of its digits is 31104, while the sum is 38.

The square root of 1161146666 is about 34075.6022103792. The cubic root of 1161146666 is about 1051.0636737357.

The spelling of 1161146666 in words is "one billion, one hundred sixty-one million, one hundred forty-six thousand, six hundred sixty-six".