11825687655 has 48 divisors (see below), whose sum is σ = 20754714240. Its totient is φ = 6228186624.

The previous prime is 11825687617. The next prime is 11825687669. The reversal of 11825687655 is 55678652811.

11825687655 is a `hidden beast` number, since 1 + 1 + 8 + 2 + 568 + 76 + 5 + 5 = 666.

It is not a de Polignac number, because 11825687655 - 2¹¹ = 11825685607 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4416177 + ... + 4418853.

It is an arithmetic number, because the mean of its divisors is an integer number (432389880).

Almost surely, 2^11825687655 is an apocalyptic number.

11825687655 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11825687655 is a deficient number, since it is larger than the sum of its proper divisors (8929026585).

11825687655 is a wasteful number, since it uses less digits than its factorization.

11825687655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3880 (or 3877 counting only the distinct ones).

The product of its digits is 4032000, while the sum is 54.

The spelling of 11825687655 in words is "eleven billion, eight hundred twenty-five million, six hundred eighty-seven thousand, six hundred fifty-five".