84320880656 has 20 divisors (see below), whose sum is σ = 163816872192. Its totient is φ = 42045558816.

The previous prime is 84320880641. The next prime is 84320880701. The reversal of 84320880656 is 65608802348.

It is a super-2 number, since 2×84320880656² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7174040 + ... + 7185783.

Almost surely, 2^84320880656 is an apocalyptic number.

It is an amenable number.

84320880656 is a deficient number, since it is larger than the sum of its proper divisors (79495991536).

84320880656 is a wasteful number, since it uses less digits than its factorization.

84320880656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14360198 (or 14360192 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 50.

The spelling of 84320880656 in words is "eighty-four billion, three hundred twenty million, eight hundred eighty thousand, six hundred fifty-six".