1161106000 has 40 divisors (see below), whose sum is σ = 2807559144. Its totient is φ = 464441600.

The previous prime is 1161105997. The next prime is 1161106003. The reversal of 1161106000 is 6011611.

It is an interprime number because it is at equal distance from previous prime (1161105997) and next prime (1161106003).

It can be written as a sum of positive squares in 4 ways, for example, as 10810944 + 1150295056 = 3288^2 + 33916^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1161106003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 288277 + ... + 292276.

Almost surely, 2^1161106000 is an apocalyptic number.

1161106000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1161106000 is an abundant number, since it is smaller than the sum of its proper divisors (1646453144).

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

1161106000 is an equidigital number, since it uses as much as digits as its factorization.

1161106000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 580576 (or 580560 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 1161106000 is about 34075.0055025674. The cubic root of 1161106000 is about 1051.0514033781.

Adding to 1161106000 its reverse (6011611), we get a palindrome (1167117611).

The spelling of 1161106000 in words is "one billion, one hundred sixty-one million, one hundred six thousand".