6427072566 has 12 divisors (see below), whose sum is σ = 13925323932. Its totient is φ = 2142357516.

The previous prime is 6427072523. The next prime is 6427072567. The reversal of 6427072566 is 6652707246.

6427072566 is a `hidden beast` number, since 64 + 27 + 0 + 7 + 2 + 566 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6427072567) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 178529776 + ... + 178529811.

It is an arithmetic number, because the mean of its divisors is an integer number (1160443661).

Almost surely, 2^6427072566 is an apocalyptic number.

6427072566 is an abundant number, since it is smaller than the sum of its proper divisors (7498251366).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6427072566 is a wasteful number, since it uses less digits than its factorization.

6427072566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357059595 (or 357059592 counting only the distinct ones).

The product of its (nonzero) digits is 846720, while the sum is 45.

The square root of 6427072566 is about 80169.0249784791. The cubic root of 6427072566 is about 1859.2497615983.

The spelling of 6427072566 in words is "six billion, four hundred twenty-seven million, seventy-two thousand, five hundred sixty-six".