223628912640 has 1152 divisors, whose sum is σ = 980118921600. Its totient is φ = 48058859520.

The previous prime is 223628912629. The next prime is 223628912659. The reversal of 223628912640 is 46219826322.

223628912640 is a `hidden beast` number, since 2 + 2 + 3 + 628 + 9 + 12 + 6 + 4 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1152).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 230307355 + ... + 230308325.

It is an arithmetic number, because the mean of its divisors is an integer number (850797675).

Almost surely, 2^223628912640 is an apocalyptic number.

223628912640 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 223628912640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (490059460800).

223628912640 is an abundant number, since it is smaller than the sum of its proper divisors (756490008960).

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

223628912640 is a wasteful number, since it uses less digits than its factorization.

223628912640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1038 (or 1005 counting only the distinct ones).

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

The spelling of 223628912640 in words is "two hundred twenty-three billion, six hundred twenty-eight million, nine hundred twelve thousand, six hundred forty".