11545354205197 has 4 divisors (see below), whose sum is σ = 11556466192960. Its totient is φ = 11534242217436.

The previous prime is 11545354205153. The next prime is 11545354205267. The reversal of 11545354205197 is 79150245354511.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11545354205197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11545354205117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5555992323 + ... + 5555994400.

It is an arithmetic number, because the mean of its divisors is an integer number (2889116548240).

Almost surely, 2^{11545354205197} is an apocalyptic number.

It is an amenable number.

11545354205197 is a deficient number, since it is larger than the sum of its proper divisors (11111987763).

11545354205197 is a wasteful number, since it uses less digits than its factorization.

11545354205197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11111987762.

The product of its (nonzero) digits is 3780000, while the sum is 52.

The spelling of 11545354205197 in words is "eleven trillion, five hundred forty-five billion, three hundred fifty-four million, two hundred five thousand, one hundred ninety-seven".