22045645247 has 2 divisors, whose sum is σ = 22045645248. Its totient is φ = 22045645246.

The previous prime is 22045645151. The next prime is 22045645253. The reversal of 22045645247 is 74254654022.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 22045645247 - 2²⁰ = 22044596671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22045645267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11022822623 + 11022822624.

It is an arithmetic number, because the mean of its divisors is an integer number (11022822624).

Almost surely, 2^22045645247 is an apocalyptic number.

22045645247 is a deficient number, since it is larger than the sum of its proper divisors (1).

22045645247 is an equidigital number, since it uses as much as digits as its factorization.

22045645247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 537600, while the sum is 41.

The spelling of 22045645247 in words is "twenty-two billion, forty-five million, six hundred forty-five thousand, two hundred forty-seven".