22158241447 has 2 divisors, whose sum is σ = 22158241448. Its totient is φ = 22158241446.

The previous prime is 22158241421. The next prime is 22158241477. The reversal of 22158241447 is 74414285122.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22158241447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22158241477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11079120723 + 11079120724.

It is an arithmetic number, because the mean of its divisors is an integer number (11079120724).

Almost surely, 2^22158241447 is an apocalyptic number.

22158241447 is a deficient number, since it is larger than the sum of its proper divisors (1).

22158241447 is an equidigital number, since it uses as much as digits as its factorization.

22158241447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 143360, while the sum is 40.

The spelling of 22158241447 in words is "twenty-two billion, one hundred fifty-eight million, two hundred forty-one thousand, four hundred forty-seven".