223506525661144 has 64 divisors (see below), whose sum is σ = 463616412307200. Its totient is φ = 100161911606400.

The previous prime is 223506525661117. The next prime is 223506525661151. The reversal of 223506525661144 is 441166525605322.

It is a super-2 number, since 2×223506525661144² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 223506525661091 and 223506525661100.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1073471002 + ... + 1073679190.

It is an arithmetic number, because the mean of its divisors is an integer number (7244006442300).

Almost surely, 2^{223506525661144} is an apocalyptic number.

It is an amenable number.

223506525661144 is an abundant number, since it is smaller than the sum of its proper divisors (240109886646056).

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

223506525661144 is a wasteful number, since it uses less digits than its factorization.

223506525661144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 380104 (or 380100 counting only the distinct ones).

The product of its (nonzero) digits is 10368000, while the sum is 52.

The spelling of 223506525661144 in words is "two hundred twenty-three trillion, five hundred six billion, five hundred twenty-five million, six hundred sixty-one thousand, one hundred forty-four".