223620720575 has 72 divisors (see below), whose sum is σ = 337056239520. Its totient is φ = 146468044800.

The previous prime is 223620720569. The next prime is 223620720643. The reversal of 223620720575 is 575027026322.

It is not a de Polignac number, because 223620720575 - 2⁸ = 223620720319 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 21661415 + ... + 21671735.

It is an arithmetic number, because the mean of its divisors is an integer number (4681336660).

Almost surely, 2^223620720575 is an apocalyptic number.

223620720575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

223620720575 is a deficient number, since it is larger than the sum of its proper divisors (113435518945).

223620720575 is a wasteful number, since it uses less digits than its factorization.

223620720575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11137 (or 11125 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 41.

Adding to 223620720575 its reverse (575027026322), we get a palindrome (798647746897).

The spelling of 223620720575 in words is "two hundred twenty-three billion, six hundred twenty million, seven hundred twenty thousand, five hundred seventy-five".