10000566643 has 2 divisors, whose sum is σ = 10000566644. Its totient is φ = 10000566642.

The previous prime is 10000566577. The next prime is 10000566649. The reversal of 10000566643 is 34666500001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10000566643 - 2²¹ = 9998469491 is a prime.

It is a super-2 number, since 2×10000566643² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10000566649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5000283321 + 5000283322.

It is an arithmetic number, because the mean of its divisors is an integer number (5000283322).

Almost surely, 2^10000566643 is an apocalyptic number.

10000566643 is a deficient number, since it is larger than the sum of its proper divisors (1).

10000566643 is an equidigital number, since it uses as much as digits as its factorization.

10000566643 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 31.

The spelling of 10000566643 in words is "ten billion, five hundred sixty-six thousand, six hundred forty-three".