223664469980 has 144 divisors (see below), whose sum is σ = 556257391200. Its totient is φ = 75301632000.

The previous prime is 223664469937. The next prime is 223664470021. The reversal of 223664469980 is 89964466322.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (59).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 74528480 + ... + 74531480.

It is an arithmetic number, because the mean of its divisors is an integer number (3862898550).

Almost surely, 2^223664469980 is an apocalyptic number.

223664469980 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 223664469980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (278128695600).

223664469980 is an abundant number, since it is smaller than the sum of its proper divisors (332592921220).

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

223664469980 is a wasteful number, since it uses less digits than its factorization.

223664469980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4372 (or 4363 counting only the distinct ones).

The product of its (nonzero) digits is 26873856, while the sum is 59.

The spelling of 223664469980 in words is "two hundred twenty-three billion, six hundred sixty-four million, four hundred sixty-nine thousand, nine hundred eighty".