223149665280 has 352 divisors, whose sum is σ = 746711013888. Its totient is φ = 56770560000.

The previous prime is 223149665227. The next prime is 223149665311. The reversal of 223149665280 is 82566941322.

It is a happy number.

It is a super-3 number, since 3×223149665280³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 212320755 + ... + 212321805.

Almost surely, 2^223149665280 is an apocalyptic number.

223149665280 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 223149665280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (373355506944).

223149665280 is an abundant number, since it is smaller than the sum of its proper divisors (523561348608).

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

223149665280 is a wasteful number, since it uses less digits than its factorization.

223149665280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1703 (or 1685 counting only the distinct ones).

The product of its (nonzero) digits is 1244160, while the sum is 48.

The spelling of 223149665280 in words is "two hundred twenty-three billion, one hundred forty-nine million, six hundred sixty-five thousand, two hundred eighty".