11505000655 has 8 divisors (see below), whose sum is σ = 13807002384. Its totient is φ = 9203332800.

The previous prime is 11505000653. The next prime is 11505000701. The reversal of 11505000655 is 55600050511.

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

It is not a de Polignac number, because 11505000655 - 2¹ = 11505000653 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 (11505000653) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 81 + ... + 151690.

It is an arithmetic number, because the mean of its divisors is an integer number (1725875298).

Almost surely, 2^11505000655 is an apocalyptic number.

11505000655 is a deficient number, since it is larger than the sum of its proper divisors (2302001729).

11505000655 is a wasteful number, since it uses less digits than its factorization.

11505000655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166937.

The product of its (nonzero) digits is 3750, while the sum is 28.

The spelling of 11505000655 in words is "eleven billion, five hundred five million, six hundred fifty-five", and thus it is an aban number.