6566351427 has 10 divisors (see below), whose sum is σ = 9808994228. Its totient is φ = 4377567564.

The previous prime is 6566351383. The next prime is 6566351437. The reversal of 6566351427 is 7241536656.

6566351427 is a `hidden beast` number, since 6 + 5 + 6 + 635 + 1 + 4 + 2 + 7 = 666.

It is not a de Polignac number, because 6566351427 - 2¹⁴ = 6566335043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6566351437) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 40532953 + ... + 40533114.

Almost surely, 2^6566351427 is an apocalyptic number.

6566351427 is a deficient number, since it is larger than the sum of its proper divisors (3242642801).

6566351427 is an equidigital number, since it uses as much as digits as its factorization.

6566351427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81066079 (or 81066070 counting only the distinct ones).

The product of its digits is 907200, while the sum is 45.

The square root of 6566351427 is about 81033.0267668683. The cubic root of 6566351427 is about 1872.5842835307.

The spelling of 6566351427 in words is "six billion, five hundred sixty-six million, three hundred fifty-one thousand, four hundred twenty-seven".