1161330210 has 40 divisors (see below), whose sum is σ = 3122690076. Its totient is φ = 309687840.

The previous prime is 1161330193. The next prime is 1161330239. The reversal of 1161330210 is 120331611.

1161330210 is a `hidden beast` number, since 1 + 1 + 613 + 30 + 21 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1146973689 + 14356521 = 33867^2 + 3789^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 716061 + ... + 717680.

Almost surely, 2^1161330210 is an apocalyptic number.

1161330210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1161330210 is an abundant number, since it is smaller than the sum of its proper divisors (1961359866).

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

1161330210 is a wasteful number, since it uses less digits than its factorization.

1161330210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1433760 (or 1433751 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1161330210 is about 34078.2952918716. The cubic root of 1161330210 is about 1051.1190518295.

Adding to 1161330210 its reverse (120331611), we get a palindrome (1281661821).

The spelling of 1161330210 in words is "one billion, one hundred sixty-one million, three hundred thirty thousand, two hundred ten".