5555664544 has 12 divisors (see below), whose sum is σ = 10937714634. Its totient is φ = 2777832256.

The previous prime is 5555664523. The next prime is 5555664547. The reversal of 5555664544 is 4454665555.

It can be written as a sum of positive squares in only one way, i.e., 5533574544 + 22090000 = 74388^2 + 4700^2 .

It is not an unprimeable number, because it can be changed into a prime (5555664547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86807227 + ... + 86807290.

Almost surely, 2^5555664544 is an apocalyptic number.

It is an amenable number.

5555664544 is a deficient number, since it is larger than the sum of its proper divisors (5382050090).

5555664544 is a wasteful number, since it uses less digits than its factorization.

5555664544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173614527 (or 173614519 counting only the distinct ones).

The product of its digits is 7200000, while the sum is 49.

The square root of 5555664544 is about 74536.3303631189. The cubic root of 5555664544 is about 1771.1091969791.

The spelling of 5555664544 in words is "five billion, five hundred fifty-five million, six hundred sixty-four thousand, five hundred forty-four".