5555555605647 has 6 divisors (see below), whose sum is σ = 8024691430392. Its totient is φ = 3703703737092.

The previous prime is 5555555605597. The next prime is 5555555605651. The reversal of 5555555605647 is 7465065555555.

5555555605647 is a `hidden beast` number, since 5 + 5 + 5 + 5 + 5 + 5 + 5 + 60 + 564 + 7 = 666.

It is not a de Polignac number, because 5555555605647 - 2⁶ = 5555555605583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5555555605657) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 308641978083 + ... + 308641978100.

It is an arithmetic number, because the mean of its divisors is an integer number (1337448571732).

Almost surely, 2^{5555555605647} is an apocalyptic number.

5555555605647 is a deficient number, since it is larger than the sum of its proper divisors (2469135824745).

5555555605647 is a wasteful number, since it uses less digits than its factorization.

5555555605647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617283956189 (or 617283956186 counting only the distinct ones).

The product of its (nonzero) digits is 393750000, while the sum is 63.

The spelling of 5555555605647 in words is "five trillion, five hundred fifty-five billion, five hundred fifty-five million, six hundred five thousand, six hundred forty-seven".