11661162250 has 16 divisors (see below), whose sum is σ = 21829696200. Its totient is φ = 4664464800.

The previous prime is 11661162241. The next prime is 11661162251. The reversal of 11661162250 is 5226116611.

It can be written as a sum of positive squares in 4 ways, for example, as 1353430521 + 10307731729 = 36789^2 + 101527^2 .

It is not an unprimeable number, because it can be changed into a prime (11661162251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23322075 + ... + 23322574.

Almost surely, 2^11661162250 is an apocalyptic number.

11661162250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11661162250 is a deficient number, since it is larger than the sum of its proper divisors (10168533950).

11661162250 is an equidigital number, since it uses as much as digits as its factorization.

11661162250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46644666 (or 46644656 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 31.

Adding to 11661162250 its reverse (5226116611), we get a palindrome (16887278861).

The spelling of 11661162250 in words is "eleven billion, six hundred sixty-one million, one hundred sixty-two thousand, two hundred fifty".