5665601616 has 40 divisors (see below), whose sum is σ = 15031713504. Its totient is φ = 1837491840.

The previous prime is 5665601593. The next prime is 5665601629. The reversal of 5665601616 is 6161065665.

It is a super-2 number, since 2×5665601616² = 64198083342443622912, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1593270 + ... + 1596821.

Almost surely, 2^5665601616 is an apocalyptic number.

It is an amenable number.

5665601616 is an abundant number, since it is smaller than the sum of its proper divisors (9366111888).

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

5665601616 is a wasteful number, since it uses less digits than its factorization.

5665601616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3190139 (or 3190133 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 42.

The square root of 5665601616 is about 75270.1907530465. The cubic root of 5665601616 is about 1782.7153792282.

The spelling of 5665601616 in words is "five billion, six hundred sixty-five million, six hundred one thousand, six hundred sixteen".