5665207665 has 64 divisors (see below), whose sum is σ = 9900495360. Its totient is φ = 2749593600.

The previous prime is 5665207663. The next prime is 5665207673. The reversal of 5665207665 is 5667025665.

It is not a de Polignac number, because 5665207665 - 2¹ = 5665207663 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5665207663) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6164076 + ... + 6164994.

It is an arithmetic number, because the mean of its divisors is an integer number (154695240).

Almost surely, 2^5665207665 is an apocalyptic number.

It is an amenable number.

5665207665 is a deficient number, since it is larger than the sum of its proper divisors (4235287695).

5665207665 is a wasteful number, since it uses less digits than its factorization.

5665207665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354.

The product of its (nonzero) digits is 2268000, while the sum is 48.

The square root of 5665207665 is about 75267.5737950945. The cubic root of 5665207665 is about 1782.6740585923.

The spelling of 5665207665 in words is "five billion, six hundred sixty-five million, two hundred seven thousand, six hundred sixty-five".