5655771636 has 12 divisors (see below), whose sum is σ = 13196800512. Its totient is φ = 1885257208.

The previous prime is 5655771631. The next prime is 5655771727. The reversal of 5655771636 is 6361775565.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5655771631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235657140 + ... + 235657163.

It is an arithmetic number, because the mean of its divisors is an integer number (1099733376).

Almost surely, 2^5655771636 is an apocalyptic number.

It is an amenable number.

5655771636 is an abundant number, since it is smaller than the sum of its proper divisors (7541028876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5655771636 is a wasteful number, since it uses less digits than its factorization.

5655771636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471314310 (or 471314308 counting only the distinct ones).

The product of its digits is 3969000, while the sum is 51.

The square root of 5655771636 is about 75204.8644437313. The cubic root of 5655771636 is about 1781.6837617347.

The spelling of 5655771636 in words is "five billion, six hundred fifty-five million, seven hundred seventy-one thousand, six hundred thirty-six".