6656802736872 has 64 divisors (see below), whose sum is σ = 16699212288000. Its totient is φ = 2211314894784.

The previous prime is 6656802736861. The next prime is 6656802736891. The reversal of 6656802736872 is 2786372086566.

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, 13044129 + ... + 13544847.

It is an arithmetic number, because the mean of its divisors is an integer number (260925192000).

Almost surely, 2^{6656802736872} is an apocalyptic number.

It is an amenable number.

6656802736872 is an abundant number, since it is smaller than the sum of its proper divisors (10042409551128).

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

6656802736872 is a wasteful number, since it uses less digits than its factorization.

6656802736872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 502630 (or 502626 counting only the distinct ones).

The product of its (nonzero) digits is 243855360, while the sum is 66.

The spelling of 6656802736872 in words is "six trillion, six hundred fifty-six billion, eight hundred two million, seven hundred thirty-six thousand, eight hundred seventy-two".