5641665530 has 8 divisors (see below), whose sum is σ = 10154997972. Its totient is φ = 2256666208.

The previous prime is 5641665517. The next prime is 5641665551. The reversal of 5641665530 is 355661465.

It can be written as a sum of positive squares in 2 ways, for example, as 5455151881 + 186513649 = 73859^2 + 13657^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282083267 + ... + 282083286.

Almost surely, 2^5641665530 is an apocalyptic number.

5641665530 is a deficient number, since it is larger than the sum of its proper divisors (4513332442).

5641665530 is a wasteful number, since it uses less digits than its factorization.

5641665530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 564166560.

The product of its (nonzero) digits is 324000, while the sum is 41.

The square root of 5641665530 is about 75111.0213617150. The cubic root of 5641665530 is about 1780.2012912537.

The spelling of 5641665530 in words is "five billion, six hundred forty-one million, six hundred sixty-five thousand, five hundred thirty".