1161200166 has 32 divisors (see below), whose sum is σ = 2678987520. Its totient is φ = 328669536.

The previous prime is 1161200137. The next prime is 1161200167. The reversal of 1161200166 is 6610021611.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161200167) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 124701 + ... + 133688.

It is an arithmetic number, because the mean of its divisors is an integer number (83718360).

Almost surely, 2^1161200166 is an apocalyptic number.

1161200166 is an abundant number, since it is smaller than the sum of its proper divisors (1517787354).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1161200166 is a wasteful number, since it uses less digits than its factorization.

1161200166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258508.

The product of its (nonzero) digits is 432, while the sum is 24.

The square root of 1161200166 is about 34076.3872204786. The cubic root of 1161200166 is about 1051.0798161245.

Adding to 1161200166 its reverse (6610021611), we get a palindrome (7771221777).

The spelling of 1161200166 in words is "one billion, one hundred sixty-one million, two hundred thousand, one hundred sixty-six".