11554666420445 has 8 divisors (see below), whose sum is σ = 13866256315320. Its totient is φ = 9243295395840.

The previous prime is 11554666420379. The next prime is 11554666420489. The reversal of 11554666420445 is 54402466645511.

It can be written as a sum of positive squares in 4 ways, for example, as 2500085919556 + 9054580500889 = 1581166^2 + 3009083^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-11554666420445 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54601400 + ... + 54812609.

It is an arithmetic number, because the mean of its divisors is an integer number (1733282039415).

Almost surely, 2^{11554666420445} is an apocalyptic number.

It is an amenable number.

11554666420445 is a deficient number, since it is larger than the sum of its proper divisors (2311589894875).

11554666420445 is a wasteful number, since it uses less digits than its factorization.

11554666420445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109435135.

The product of its (nonzero) digits is 13824000, while the sum is 53.

The spelling of 11554666420445 in words is "eleven trillion, five hundred fifty-four billion, six hundred sixty-six million, four hundred twenty thousand, four hundred forty-five".