5665016665 has 48 divisors (see below), whose sum is σ = 8643910464. Its totient is φ = 3524438400.

The previous prime is 5665016597. The next prime is 5665016689. The reversal of 5665016665 is 5666105665.

It is not a de Polignac number, because 5665016665 - 2¹⁷ = 5664885593 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1580175 + ... + 1583755.

It is an arithmetic number, because the mean of its divisors is an integer number (180081468).

Almost surely, 2^5665016665 is an apocalyptic number.

5665016665 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

5665016665 is a deficient number, since it is larger than the sum of its proper divisors (2978893799).

5665016665 is a wasteful number, since it uses less digits than its factorization.

5665016665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4198 (or 4191 counting only the distinct ones).

The product of its (nonzero) digits is 972000, while the sum is 46.

The square root of 5665016665 is about 75266.3049777256. The cubic root of 5665016665 is about 1782.6540243416.

The spelling of 5665016665 in words is "five billion, six hundred sixty-five million, sixteen thousand, six hundred sixty-five".