5663521420 has 24 divisors (see below), whose sum is σ = 11906073648. Its totient is φ = 2262993600.

The previous prime is 5663521379. The next prime is 5663521441. The reversal of 5663521420 is 241253665.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131646 + ... + 169285.

It is an arithmetic number, because the mean of its divisors is an integer number (496086402).

Almost surely, 2^5663521420 is an apocalyptic number.

It is an amenable number.

5663521420 is an abundant number, since it is smaller than the sum of its proper divisors (6242552228).

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

5663521420 is a wasteful number, since it uses less digits than its factorization.

5663521420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301881 (or 301879 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The square root of 5663521420 is about 75256.3712917385. The cubic root of 5663521420 is about 1782.4971704891.

The spelling of 5663521420 in words is "five billion, six hundred sixty-three million, five hundred twenty-one thousand, four hundred twenty".