11554545061345 has 48 divisors (see below), whose sum is σ = 16439935841280. Its totient is φ = 7744115111040.

The previous prime is 11554545061331. The next prime is 11554545061349. The reversal of 11554545061345 is 54316054545511.

It is not a de Polignac number, because 11554545061345 - 2⁹ = 11554545060833 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11554545061349) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3563916 + ... + 5984194.

It is an arithmetic number, because the mean of its divisors is an integer number (342498663360).

Almost surely, 2^{11554545061345} is an apocalyptic number.

It is an amenable number.

11554545061345 is a deficient number, since it is larger than the sum of its proper divisors (4885390779935).

11554545061345 is a wasteful number, since it uses less digits than its factorization.

11554545061345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2420926 (or 2420915 counting only the distinct ones).

The product of its (nonzero) digits is 3600000, while the sum is 49.

The spelling of 11554545061345 in words is "eleven trillion, five hundred fifty-four billion, five hundred forty-five million, sixty-one thousand, three hundred forty-five".