11554340122661 has 8 divisors (see below), whose sum is σ = 13207429784640. Its totient is φ = 9901867871808.

The previous prime is 11554340122607. The next prime is 11554340122679. The reversal of 11554340122661 is 16622104345511.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11554340122661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11554340122681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154312676 + ... + 154387533.

It is an arithmetic number, because the mean of its divisors is an integer number (1650928723080).

Almost surely, 2^{11554340122661} is an apocalyptic number.

It is an amenable number.

11554340122661 is a deficient number, since it is larger than the sum of its proper divisors (1653089661979).

11554340122661 is an equidigital number, since it uses as much as digits as its factorization.

11554340122661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308705563.

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 11554340122661 in words is "eleven trillion, five hundred fifty-four billion, three hundred forty million, one hundred twenty-two thousand, six hundred sixty-one".