11621161204340 has 12 divisors (see below), whose sum is σ = 24404438529156. Its totient is φ = 4648464481728.

The previous prime is 11621161204321. The next prime is 11621161204357. The reversal of 11621161204340 is 4340216112611.

It can be written as a sum of positive squares in 2 ways, for example, as 4397601926116 + 7223559278224 = 2097046^2 + 2687668^2 .

It is a junction number, because it is equal to n+sod(n) for n = 11621161204297 and 11621161204306.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 290529030089 + ... + 290529030128.

It is an arithmetic number, because the mean of its divisors is an integer number (2033703210763).

Almost surely, 2^{11621161204340} is an apocalyptic number.

11621161204340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11621161204340 is an abundant number, since it is smaller than the sum of its proper divisors (12783277324816).

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

11621161204340 is a wasteful number, since it uses less digits than its factorization.

11621161204340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 581058060226 (or 581058060224 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 32.

Adding to 11621161204340 its reverse (4340216112611), we get a palindrome (15961377316951).

The spelling of 11621161204340 in words is "eleven trillion, six hundred twenty-one billion, one hundred sixty-one million, two hundred four thousand, three hundred forty".