5566660501 has 4 divisors (see below), whose sum is σ = 5566850604. Its totient is φ = 5566470400.

The previous prime is 5566660493. The next prime is 5566660507. The reversal of 5566660501 is 1050666655.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3121456900 + 2445203601 = 55870^2 + 49449^2 .

It is a cyclic number.

It is not a de Polignac number, because 5566660501 - 2³ = 5566660493 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5566660507) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40810 + ... + 113131.

It is an arithmetic number, because the mean of its divisors is an integer number (1391712651).

Almost surely, 2^5566660501 is an apocalyptic number.

It is an amenable number.

5566660501 is a deficient number, since it is larger than the sum of its proper divisors (190103).

5566660501 is a wasteful number, since it uses less digits than its factorization.

5566660501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190102.

The product of its (nonzero) digits is 162000, while the sum is 40.

The square root of 5566660501 is about 74610.0562994024. The cubic root of 5566660501 is about 1772.2769064389.

The spelling of 5566660501 in words is "five billion, five hundred sixty-six million, six hundred sixty thousand, five hundred one".