5665565160664 has 8 divisors (see below), whose sum is σ = 10622934676260. Its totient is φ = 2832782580328.

The previous prime is 5665565160653. The next prime is 5665565160727. The reversal of 5665565160664 is 4660615655665.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×5665565160664² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 354097822534 + ... + 354097822549.

Almost surely, 2^{5665565160664} is an apocalyptic number.

It is an amenable number.

5665565160664 is a deficient number, since it is larger than the sum of its proper divisors (4957369515596).

5665565160664 is a wasteful number, since it uses less digits than its factorization.

5665565160664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 708195645089 (or 708195645085 counting only the distinct ones).

The product of its (nonzero) digits is 116640000, while the sum is 61.

The spelling of 5665565160664 in words is "five trillion, six hundred sixty-five billion, five hundred sixty-five million, one hundred sixty thousand, six hundred sixty-four".