5646663600 has 60 divisors (see below), whose sum is σ = 18088149576. Its totient is φ = 1505776640.

The previous prime is 5646663571. The next prime is 5646663641. The reversal of 5646663600 is 63666465.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (60).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2351577 + ... + 2353976.

Almost surely, 2^5646663600 is an apocalyptic number.

5646663600 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

5646663600 is an abundant number, since it is smaller than the sum of its proper divisors (12441485976).

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

5646663600 is a wasteful number, since it uses less digits than its factorization.

5646663600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4705574 (or 4705563 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 42.

The square root of 5646663600 is about 75144.2852118509. The cubic root of 5646663600 is about 1780.7268419915.

The spelling of 5646663600 in words is "five billion, six hundred forty-six million, six hundred sixty-three thousand, six hundred".