11505000655005 has 128 divisors (see below), whose sum is σ = 21746710185984. Its totient is φ = 5120435174400.

The previous prime is 11505000654991. The next prime is 11505000655039. The reversal of 11505000655005 is 50055600050511.

It is not a de Polignac number, because 11505000655005 - 2⁴ = 11505000654989 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 580669479 + ... + 580689291.

It is an arithmetic number, because the mean of its divisors is an integer number (169896173328).

Almost surely, 2^{11505000655005} is an apocalyptic number.

11505000655005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11505000655005 is a deficient number, since it is larger than the sum of its proper divisors (10241709530979).

11505000655005 is a wasteful number, since it uses less digits than its factorization.

11505000655005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21339.

The product of its (nonzero) digits is 18750, while the sum is 33.

The spelling of 11505000655005 in words is "eleven trillion, five hundred five billion, six hundred fifty-five thousand, five".