5666661763 has 16 divisors (see below), whose sum is σ = 6527462400. Its totient is φ = 4818760416.

The previous prime is 5666661757. The next prime is 5666661769. The reversal of 5666661763 is 3671666665.

It is an interprime number because it is at equal distance from previous prime (5666661757) and next prime (5666661769).

It is a cyclic number.

It is not a de Polignac number, because 5666661763 - 2¹⁷ = 5666530691 is a prime.

It is a super-2 number, since 2×5666661763² = 64222111072492536338, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5666661763.

It is not an unprimeable number, because it can be changed into a prime (5666661769) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1022506 + ... + 1028032.

It is an arithmetic number, because the mean of its divisors is an integer number (407966400).

Almost surely, 2^5666661763 is an apocalyptic number.

5666661763 is a deficient number, since it is larger than the sum of its proper divisors (860800637).

5666661763 is a wasteful number, since it uses less digits than its factorization.

5666661763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6666.

The product of its digits is 4898880, while the sum is 52.

The square root of 5666661763 is about 75277.2327001996. The cubic root of 5666661763 is about 1782.8265661548.

The spelling of 5666661763 in words is "five billion, six hundred sixty-six million, six hundred sixty-one thousand, seven hundred sixty-three".