5501660688 has 60 divisors (see below), whose sum is σ = 15549495468. Its totient is φ = 1815724800.

The previous prime is 5501660687. The next prime is 5501660693. The reversal of 5501660688 is 8860661055.

5501660688 is a `hidden beast` number, since 5 + 501 + 6 + 60 + 6 + 88 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 5190914304 + 310746384 = 72048^2 + 17628^2 .

It is not an unprimeable number, because it can be changed into a prime (5501660687) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 174595 + ... + 203682.

Almost surely, 2^5501660688 is an apocalyptic number.

It is an amenable number.

5501660688 is an abundant number, since it is smaller than the sum of its proper divisors (10047834780).

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

5501660688 is a wasteful number, since it uses less digits than its factorization.

5501660688 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378392 (or 378383 counting only the distinct ones).

The product of its (nonzero) digits is 345600, while the sum is 45.

The square root of 5501660688 is about 74173.1803821300. The cubic root of 5501660688 is about 1765.3518106066.

The spelling of 5501660688 in words is "five billion, five hundred one million, six hundred sixty thousand, six hundred eighty-eight".