5663661536 has 24 divisors (see below), whose sum is σ = 12008052504. Its totient is φ = 2613997440.

The previous prime is 5663661439. The next prime is 5663661599. The reversal of 5663661536 is 6351663665.

It is a congruent 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, 6806870 + ... + 6807701.

It is an arithmetic number, because the mean of its divisors is an integer number (500335521).

Almost surely, 2^5663661536 is an apocalyptic number.

It is an amenable number.

5663661536 is an abundant number, since it is smaller than the sum of its proper divisors (6344390968).

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

5663661536 is a wasteful number, since it uses less digits than its factorization.

5663661536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13614594 (or 13614586 counting only the distinct ones).

The product of its digits is 1749600, while the sum is 47.

The square root of 5663661536 is about 75257.3022104832. The cubic root of 5663661536 is about 1782.5118700783.

The spelling of 5663661536 in words is "five billion, six hundred sixty-three million, six hundred sixty-one thousand, five hundred thirty-six".