223105445256463 has 64 divisors (see below), whose sum is σ = 294879999744000. Its totient is φ = 163658357660160.

The previous prime is 223105445256461. The next prime is 223105445256481. The reversal of 223105445256463 is 364652544501322.

It is a happy number.

It is not a de Polignac number, because 223105445256463 - 2¹ = 223105445256461 is a prime.

It is a super-3 number, since 3×223105445256463³ (a number of 44 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 223105445256463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223105445256461) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 24884445 + ... + 32641177.

It is an arithmetic number, because the mean of its divisors is an integer number (4607499996000).

Almost surely, 2^{223105445256463} is an apocalyptic number.

223105445256463 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

223105445256463 is a deficient number, since it is larger than the sum of its proper divisors (71774554487537).

223105445256463 is a wasteful number, since it uses less digits than its factorization.

223105445256463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7757032.

The product of its (nonzero) digits is 20736000, while the sum is 52.

Adding to 223105445256463 its reverse (364652544501322), we get a palindrome (587757989757785).

The spelling of 223105445256463 in words is "two hundred twenty-three trillion, one hundred five billion, four hundred forty-five million, two hundred fifty-six thousand, four hundred sixty-three".