10956606421 has 2 divisors, whose sum is σ = 10956606422. Its totient is φ = 10956606420.

The previous prime is 10956606371. The next prime is 10956606431. The reversal of 10956606421 is 12460665901.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7866803025 + 3089803396 = 88695^2 + 55586^2 .

It is an emirp because it is prime and its reverse (12460665901) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10956606421 - 2⁷ = 10956606293 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10956606431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5478303210 + 5478303211.

It is an arithmetic number, because the mean of its divisors is an integer number (5478303211).

Almost surely, 2^10956606421 is an apocalyptic number.

It is an amenable number.

10956606421 is a deficient number, since it is larger than the sum of its proper divisors (1).

10956606421 is an equidigital number, since it uses as much as digits as its factorization.

10956606421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 40.

The spelling of 10956606421 in words is "ten billion, nine hundred fifty-six million, six hundred six thousand, four hundred twenty-one".