11661056600115 has 32 divisors (see below), whose sum is σ = 20635948823616. Its totient is φ = 5585670351360.

The previous prime is 11661056600111. The next prime is 11661056600129. The reversal of 11661056600115 is 51100665016611.

It is not a de Polignac number, because 11661056600115 - 2² = 11661056600111 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (11661056600111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 808104816 + ... + 808119245.

It is an arithmetic number, because the mean of its divisors is an integer number (644873400738).

Almost surely, 2^{11661056600115} is an apocalyptic number.

11661056600115 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11661056600115 is a deficient number, since it is larger than the sum of its proper divisors (8974892223501).

11661056600115 is a wasteful number, since it uses less digits than its factorization.

11661056600115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1616224119.

The product of its (nonzero) digits is 32400, while the sum is 39.

The spelling of 11661056600115 in words is "eleven trillion, six hundred sixty-one billion, fifty-six million, six hundred thousand, one hundred fifteen".