11555000045 has 8 divisors (see below), whose sum is σ = 14681647224. Its totient is φ = 8700235264.

The previous prime is 11555000027. The next prime is 11555000053. The reversal of 11555000045 is 54000055511.

It can be written as a sum of positive squares in 4 ways, for example, as 999697924 + 10555302121 = 31618^2 + 102739^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 11555000045 - 2³² = 7260032749 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11554999978 and 11555000023.

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, 67970504 + ... + 67970673.

It is an arithmetic number, because the mean of its divisors is an integer number (1835205903).

Almost surely, 2^11555000045 is an apocalyptic number.

It is an amenable number.

11555000045 is a deficient number, since it is larger than the sum of its proper divisors (3126647179).

11555000045 is a wasteful number, since it uses less digits than its factorization.

11555000045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135941199.

The product of its (nonzero) digits is 2500, while the sum is 26.

Adding to 11555000045 its reverse (54000055511), we get a palindrome (65555055556).

The spelling of 11555000045 in words is "eleven billion, five hundred fifty-five million, forty-five", and thus it is an aban number.