5665653440 has 56 divisors (see below), whose sum is σ = 13956578640. Its totient is φ = 2188110848.

The previous prime is 5665653439. The next prime is 5665653463. The reversal of 5665653440 is 443565665.

It is a junction number, because it is equal to n+sod(n) for n = 5665653391 and 5665653400.

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, 295982 + ... + 314541.

Almost surely, 2^5665653440 is an apocalyptic number.

It is an amenable number.

5665653440 is an abundant number, since it is smaller than the sum of its proper divisors (8290925200).

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

5665653440 is a wasteful number, since it uses less digits than its factorization.

5665653440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610569 (or 610559 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 44.

The square root of 5665653440 is about 75270.5350054057. The cubic root of 5665653440 is about 1782.7208147887.

The spelling of 5665653440 in words is "five billion, six hundred sixty-five million, six hundred fifty-three thousand, four hundred forty".