66962426911 has 2 divisors, whose sum is σ = 66962426912. Its totient is φ = 66962426910.

The previous prime is 66962426899. The next prime is 66962426917. The reversal of 66962426911 is 11962426966.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 66962426911 - 2¹⁷ = 66962295839 is a prime.

It is a super-2 number, since 2×66962426911² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (66962426917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33481213455 + 33481213456.

It is an arithmetic number, because the mean of its divisors is an integer number (33481213456).

Almost surely, 2^66962426911 is an apocalyptic number.

66962426911 is a deficient number, since it is larger than the sum of its proper divisors (1).

66962426911 is an equidigital number, since it uses as much as digits as its factorization.

66962426911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1679616, while the sum is 52.

Subtracting from 66962426911 its reverse (11962426966), we obtain a palindrome (54999999945).

The spelling of 66962426911 in words is "sixty-six billion, nine hundred sixty-two million, four hundred twenty-six thousand, nine hundred eleven".