10643266604647 has 2 divisors, whose sum is σ = 10643266604648. Its totient is φ = 10643266604646.

The previous prime is 10643266604617. The next prime is 10643266604671. The reversal of 10643266604647 is 74640666234601.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10643266604647 - 2²³ = 10643258216039 is a prime.

It is a super-2 number, since 2×10643266604647² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10643266604617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5321633302323 + 5321633302324.

It is an arithmetic number, because the mean of its divisors is an integer number (5321633302324).

Almost surely, 2^{10643266604647} is an apocalyptic number.

10643266604647 is a deficient number, since it is larger than the sum of its proper divisors (1).

10643266604647 is an equidigital number, since it uses as much as digits as its factorization.

10643266604647 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20901888, while the sum is 55.

The spelling of 10643266604647 in words is "ten trillion, six hundred forty-three billion, two hundred sixty-six million, six hundred four thousand, six hundred forty-seven".