223361145520 has 40 divisors (see below), whose sum is σ = 519639330240. Its totient is φ = 89288601600.

The previous prime is 223361145467. The next prime is 223361145541. The reversal of 223361145520 is 25541163322.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 743880 + ... + 1000039.

It is an arithmetic number, because the mean of its divisors is an integer number (12990983256).

Almost surely, 2^223361145520 is an apocalyptic number.

223361145520 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

223361145520 is an abundant number, since it is smaller than the sum of its proper divisors (296278184720).

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

223361145520 is a wasteful number, since it uses less digits than its factorization.

223361145520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1745533 (or 1745527 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

The spelling of 223361145520 in words is "two hundred twenty-three billion, three hundred sixty-one million, one hundred forty-five thousand, five hundred twenty".