220800915656 has 32 divisors (see below), whose sum is σ = 435848688000. Its totient is φ = 104576129856.

The previous prime is 220800915631. The next prime is 220800915661. The reversal of 220800915656 is 656519008022.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1111970 + ... + 1295406.

It is an arithmetic number, because the mean of its divisors is an integer number (13620271500).

Almost surely, 2^220800915656 is an apocalyptic number.

It is an amenable number.

220800915656 is a deficient number, since it is larger than the sum of its proper divisors (215047772344).

220800915656 is a wasteful number, since it uses less digits than its factorization.

220800915656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191381 (or 191377 counting only the distinct ones).

The product of its (nonzero) digits is 259200, while the sum is 44.

The spelling of 220800915656 in words is "two hundred twenty billion, eight hundred million, nine hundred fifteen thousand, six hundred fifty-six".