10261559911 has 2 divisors, whose sum is σ = 10261559912. Its totient is φ = 10261559910.

The previous prime is 10261559857. The next prime is 10261559929. The reversal of 10261559911 is 11995516201.

It is a strong prime.

It is an emirp because it is prime and its reverse (11995516201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10261559911 - 2¹⁹ = 10261035623 is a prime.

It is a super-2 number, since 2×10261559911² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10261559951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5130779955 + 5130779956.

It is an arithmetic number, because the mean of its divisors is an integer number (5130779956).

Almost surely, 2^10261559911 is an apocalyptic number.

10261559911 is a deficient number, since it is larger than the sum of its proper divisors (1).

10261559911 is an equidigital number, since it uses as much as digits as its factorization.

10261559911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24300, while the sum is 40.

The spelling of 10261559911 in words is "ten billion, two hundred sixty-one million, five hundred fifty-nine thousand, nine hundred eleven".