11505060655 has 16 divisors (see below), whose sum is σ = 15115562784. Its totient is φ = 8337098880.

The previous prime is 11505060629. The next prime is 11505060691. The reversal of 11505060655 is 55606050511.

It is not a de Polignac number, because 11505060655 - 2¹⁵ = 11505027887 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11505060655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 362352 + ... + 392821.

It is an arithmetic number, because the mean of its divisors is an integer number (944722674).

Almost surely, 2^11505060655 is an apocalyptic number.

11505060655 is a deficient number, since it is larger than the sum of its proper divisors (3610502129).

11505060655 is a wasteful number, since it uses less digits than its factorization.

11505060655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755466.

The product of its (nonzero) digits is 22500, while the sum is 34.

The spelling of 11505060655 in words is "eleven billion, five hundred five million, sixty thousand, six hundred fifty-five".