5566165988 has 6 divisors (see below), whose sum is σ = 9740790486. Its totient is φ = 2783082992.

The previous prime is 5566165951. The next prime is 5566166009. The reversal of 5566165988 is 8895616655.

It can be written as a sum of positive squares in only one way, i.e., 4861157284 + 705008704 = 69722^2 + 26552^2 .

It is a super-2 number, since 2×5566165988² = 61964407611936032288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 695770745 + ... + 695770752.

It is an arithmetic number, because the mean of its divisors is an integer number (1623465081).

Almost surely, 2^5566165988 is an apocalyptic number.

It is an amenable number.

5566165988 is a deficient number, since it is larger than the sum of its proper divisors (4174624498).

5566165988 is a wasteful number, since it uses less digits than its factorization.

5566165988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1391541501 (or 1391541499 counting only the distinct ones).

The product of its digits is 15552000, while the sum is 59.

The square root of 5566165988 is about 74606.7422422397. The cubic root of 5566165988 is about 1772.2244249482.

The spelling of 5566165988 in words is "five billion, five hundred sixty-six million, one hundred sixty-five thousand, nine hundred eighty-eight".