223216289640 has 96 divisors (see below), whose sum is σ = 726275553120. Its totient is φ = 59456847744.

The previous prime is 223216289623. The next prime is 223216289651. The reversal of 223216289640 is 46982612322.

223216289640 is a `hidden beast` number, since 2 + 2 + 321 + 6 + 289 + 6 + 40 = 666.

It is a super-3 number, since 3×223216289640³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33222 + ... + 668981.

It is an arithmetic number, because the mean of its divisors is an integer number (7565370345).

Almost surely, 2^223216289640 is an apocalyptic number.

223216289640 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 223216289640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (363137776560).

223216289640 is an abundant number, since it is smaller than the sum of its proper divisors (503059263480).

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

223216289640 is a wasteful number, since it uses less digits than its factorization.

223216289640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703103 (or 703096 counting only the distinct ones).

The product of its (nonzero) digits is 497664, while the sum is 45.

The spelling of 223216289640 in words is "two hundred twenty-three billion, two hundred sixteen million, two hundred eighty-nine thousand, six hundred forty".