64425505511 has 2 divisors, whose sum is σ = 64425505512. Its totient is φ = 64425505510.

The previous prime is 64425505457. The next prime is 64425505517. The reversal of 64425505511 is 11550552446.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64425505511 - 2³⁰ = 63351763687 is a prime.

It is a super-2 number, since 2×64425505511² (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 (64425505517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32212752755 + 32212752756.

It is an arithmetic number, because the mean of its divisors is an integer number (32212752756).

Almost surely, 2^64425505511 is an apocalyptic number.

64425505511 is a deficient number, since it is larger than the sum of its proper divisors (1).

64425505511 is an equidigital number, since it uses as much as digits as its factorization.

64425505511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120000, while the sum is 38.

The spelling of 64425505511 in words is "sixty-four billion, four hundred twenty-five million, five hundred five thousand, five hundred eleven".