224345006397581 has 2 divisors, whose sum is σ = 224345006397582. Its totient is φ = 224345006397580.

The previous prime is 224345006397563. The next prime is 224345006397641. The reversal of 224345006397581 is 185793600543422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 222596552908900 + 1748453488681 = 14919670^2 + 1322291^2 .

It is a cyclic number.

It is not a de Polignac number, because 224345006397581 - 2⁶ = 224345006397517 is a prime.

It is a super-2 number, since 2×224345006397581² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 224345006397581.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224345006393581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112172503198790 + 112172503198791.

It is an arithmetic number, because the mean of its divisors is an integer number (112172503198791).

It is a 1-persistent number, because it is pandigital, but 2⋅224345006397581 = 448690012795162 is not.

Almost surely, 2^{224345006397581} is an apocalyptic number.

It is an amenable number.

224345006397581 is a deficient number, since it is larger than the sum of its proper divisors (1).

224345006397581 is an equidigital number, since it uses as much as digits as its factorization.

224345006397581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 43545600, while the sum is 59.

The spelling of 224345006397581 in words is "two hundred twenty-four trillion, three hundred forty-five billion, six million, three hundred ninety-seven thousand, five hundred eighty-one".