6566156512 has 48 divisors (see below), whose sum is σ = 13240901520. Its totient is φ = 3204292608.

The previous prime is 6566156507. The next prime is 6566156533. The reversal of 6566156512 is 2156516656.

It is a super-2 number, since 2×6566156512² = 86228822680160012288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 219648 + ... + 247744.

It is an arithmetic number, because the mean of its divisors is an integer number (275852115).

Almost surely, 2^6566156512 is an apocalyptic number.

It is an amenable number.

6566156512 is an abundant number, since it is smaller than the sum of its proper divisors (6674745008).

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

6566156512 is a wasteful number, since it uses less digits than its factorization.

6566156512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28283 (or 28275 counting only the distinct ones).

The product of its digits is 324000, while the sum is 43.

The square root of 6566156512 is about 81031.8240693124. The cubic root of 6566156512 is about 1872.5657548048.

The spelling of 6566156512 in words is "six billion, five hundred sixty-six million, one hundred fifty-six thousand, five hundred twelve".