10656021611 has 2 divisors, whose sum is σ = 10656021612. Its totient is φ = 10656021610.

The previous prime is 10656021577. The next prime is 10656021631. The reversal of 10656021611 is 11612065601.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10656021611 - 2³⁰ = 9582279787 is a prime.

It is a super-2 number, since 2×10656021611² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10656021631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5328010805 + 5328010806.

It is an arithmetic number, because the mean of its divisors is an integer number (5328010806).

Almost surely, 2^10656021611 is an apocalyptic number.

10656021611 is a deficient number, since it is larger than the sum of its proper divisors (1).

10656021611 is an equidigital number, since it uses as much as digits as its factorization.

10656021611 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 29.

The spelling of 10656021611 in words is "ten billion, six hundred fifty-six million, twenty-one thousand, six hundred eleven".