5061666566 has 16 divisors (see below), whose sum is σ = 8283841488. Its totient is φ = 2300448000.

The previous prime is 5061666553. The next prime is 5061666607. The reversal of 5061666566 is 6656661605.

It is a self number, because there is not a number n which added to its sum of digits gives 5061666566.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 263546 + ... + 282098.

It is an arithmetic number, because the mean of its divisors is an integer number (517740093).

Almost surely, 2^5061666566 is an apocalyptic number.

5061666566 is a deficient number, since it is larger than the sum of its proper divisors (3222174922).

5061666566 is a wasteful number, since it uses less digits than its factorization.

5061666566 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30967.

The product of its (nonzero) digits is 1166400, while the sum is 47.

The square root of 5061666566 is about 71145.3903355657. The cubic root of 5061666566 is about 1716.9771321135.

It can be divided in two parts, 50 and 61666566, that added together give a palindrome (61666616).

The spelling of 5061666566 in words is "five billion, sixty-one million, six hundred sixty-six thousand, five hundred sixty-six".