6562780872656 has 80 divisors (see below), whose sum is σ = 13161510895104. Its totient is φ = 3168140556672.

The previous prime is 6562780872649. The next prime is 6562780872733.

6562780872656 is nontrivially palindromic in base 10.

It is a super-4 number, since 4×6562780872656⁴ (a number of 52 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38677955 + ... + 38847261.

Almost surely, 2^{6562780872656} is an apocalyptic number.

It is an amenable number.

6562780872656 is an abundant number, since it is smaller than the sum of its proper divisors (6598730022448).

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

6562780872656 is a wasteful number, since it uses less digits than its factorization.

6562780872656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170008 (or 170002 counting only the distinct ones).

The product of its (nonzero) digits is 406425600, while the sum is 68.

The spelling of 6562780872656 in words is "six trillion, five hundred sixty-two billion, seven hundred eighty million, eight hundred seventy-two thousand, six hundred fifty-six".