10211610661663 has 2 divisors, whose sum is σ = 10211610661664. Its totient is φ = 10211610661662.

The previous prime is 10211610661643. The next prime is 10211610661673. The reversal of 10211610661663 is 36616601611201.

10211610661663 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10211610661663 - 2⁵ = 10211610661631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10211610661643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5105805330831 + 5105805330832.

It is an arithmetic number, because the mean of its divisors is an integer number (5105805330832).

Almost surely, 2^{10211610661663} is an apocalyptic number.

10211610661663 is a deficient number, since it is larger than the sum of its proper divisors (1).

10211610661663 is an equidigital number, since it uses as much as digits as its factorization.

10211610661663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 40.

The spelling of 10211610661663 in words is "ten trillion, two hundred eleven billion, six hundred ten million, six hundred sixty-one thousand, six hundred sixty-three".