10645440066551 has 2 divisors, whose sum is σ = 10645440066552. Its totient is φ = 10645440066550.

The previous prime is 10645440066517. The next prime is 10645440066553. The reversal of 10645440066551 is 15566004454601.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10645440066551 - 2⁶ = 10645440066487 is a prime.

It is a super-2 number, since 2×10645440066551² (a number of 27 digits) contains 22 as substring.

Together with 10645440066553, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 10645440066496 and 10645440066505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10645440066553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5322720033275 + 5322720033276.

It is an arithmetic number, because the mean of its divisors is an integer number (5322720033276).

Almost surely, 2^{10645440066551} is an apocalyptic number.

10645440066551 is a deficient number, since it is larger than the sum of its proper divisors (1).

10645440066551 is an equidigital number, since it uses as much as digits as its factorization.

10645440066551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728000, while the sum is 47.

The spelling of 10645440066551 in words is "ten trillion, six hundred forty-five billion, four hundred forty million, sixty-six thousand, five hundred fifty-one".