6566151057 has 4 divisors (see below), whose sum is σ = 8754868080. Its totient is φ = 4377434036.

The previous prime is 6566151049. The next prime is 6566151061. The reversal of 6566151057 is 7501516656.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6566151057 - 2³ = 6566151049 is a prime.

It is a super-2 number, since 2×6566151057² = 86228679406684434498, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6566151047) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1094358507 + ... + 1094358512.

It is an arithmetic number, because the mean of its divisors is an integer number (2188717020).

Almost surely, 2^6566151057 is an apocalyptic number.

It is an amenable number.

6566151057 is a deficient number, since it is larger than the sum of its proper divisors (2188717023).

6566151057 is a wasteful number, since it uses less digits than its factorization.

6566151057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2188717022.

The product of its (nonzero) digits is 189000, while the sum is 42.

The square root of 6566151057 is about 81031.7904096904. The cubic root of 6566151057 is about 1872.5652362443.

The spelling of 6566151057 in words is "six billion, five hundred sixty-six million, one hundred fifty-one thousand, fifty-seven".