8822661643 has 2 divisors, whose sum is σ = 8822661644. Its totient is φ = 8822661642.

The previous prime is 8822661607. The next prime is 8822661671. The reversal of 8822661643 is 3461662288.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 8822661643 - 2¹⁷ = 8822530571 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 8822661593 and 8822661602.

It is not a weakly prime, because it can be changed into another prime (8822668643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4411330821 + 4411330822.

It is an arithmetic number, because the mean of its divisors is an integer number (4411330822).

Almost surely, 2^8822661643 is an apocalyptic number.

8822661643 is a deficient number, since it is larger than the sum of its proper divisors (1).

8822661643 is an equidigital number, since it uses as much as digits as its factorization.

8822661643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 663552, while the sum is 46.

The square root of 8822661643 is about 93929.0244972234. The cubic root of 8822661643 is about 2066.3309211812.

The spelling of 8822661643 in words is "eight billion, eight hundred twenty-two million, six hundred sixty-one thousand, six hundred forty-three".