1161925166 has 8 divisors (see below), whose sum is σ = 1743993504. Its totient is φ = 580594000.

The previous prime is 1161925123. The next prime is 1161925187. The reversal of 1161925166 is 6615291611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180335 + ... + 186666.

It is an arithmetic number, because the mean of its divisors is an integer number (217999188).

Almost surely, 2^1161925166 is an apocalyptic number.

1161925166 is a deficient number, since it is larger than the sum of its proper divisors (582068338).

1161925166 is a wasteful number, since it uses less digits than its factorization.

1161925166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368586.

The product of its digits is 19440, while the sum is 38.

The square root of 1161925166 is about 34087.0234253447. The cubic root of 1161925166 is about 1051.2985192535.

The spelling of 1161925166 in words is "one billion, one hundred sixty-one million, nine hundred twenty-five thousand, one hundred sixty-six".