223616470656 has 128 divisors (see below), whose sum is σ = 607754972160. Its totient is φ = 72816307200.

The previous prime is 223616470639. The next prime is 223616470657. The reversal of 223616470656 is 656074616322.

It is a tau number, because it is divible by the number of its divisors (128).

It is a hoax number, since the sum of its digits (48) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (223616470657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9860931 + ... + 9883581.

It is an arithmetic number, because the mean of its divisors is an integer number (4748085720).

Almost surely, 2^223616470656 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223616470656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303877486080).

223616470656 is an abundant number, since it is smaller than the sum of its proper divisors (384138501504).

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

223616470656 is a wasteful number, since it uses less digits than its factorization.

223616470656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23262 (or 23250 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 48.

The spelling of 223616470656 in words is "two hundred twenty-three billion, six hundred sixteen million, four hundred seventy thousand, six hundred fifty-six".