11587798655 has 16 divisors (see below), whose sum is σ = 14775377184. Its totient is φ = 8694082560.

The previous prime is 11587798633. The next prime is 11587798657. The reversal of 11587798655 is 55689778511.

It is not a de Polignac number, because 11587798655 - 2⁸ = 11587798399 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 (11587798657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 216806 + ... + 264915.

It is an arithmetic number, because the mean of its divisors is an integer number (923461074).

Almost surely, 2^11587798655 is an apocalyptic number.

11587798655 is a deficient number, since it is larger than the sum of its proper divisors (3187578529).

11587798655 is a wasteful number, since it uses less digits than its factorization.

11587798655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482026.

The product of its digits is 21168000, while the sum is 62.

The spelling of 11587798655 in words is "eleven billion, five hundred eighty-seven million, seven hundred ninety-eight thousand, six hundred fifty-five".