1161871066 has 8 divisors (see below), whose sum is σ = 1766680884. Its totient is φ = 572977440.

The previous prime is 1161871063. The next prime is 1161871097. The reversal of 1161871066 is 6601781611.

It can be written as a sum of positive squares in 2 ways, for example, as 1140480441 + 21390625 = 33771^2 + 4625^2 .

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

It is not an unprimeable number, because it can be changed into a prime (1161871063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3978865 + ... + 3979156.

Almost surely, 2^1161871066 is an apocalyptic number.

1161871066 is a deficient number, since it is larger than the sum of its proper divisors (604809818).

1161871066 is an equidigital number, since it uses as much as digits as its factorization.

1161871066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7958096.

The product of its (nonzero) digits is 12096, while the sum is 37.

The square root of 1161871066 is about 34086.2298589914. The cubic root of 1161871066 is about 1051.2822026167.

The spelling of 1161871066 in words is "one billion, one hundred sixty-one million, eight hundred seventy-one thousand, sixty-six".