9660025811 has 2 divisors, whose sum is σ = 9660025812. Its totient is φ = 9660025810.

The previous prime is 9660025807. The next prime is 9660025891. The reversal of 9660025811 is 1185200669.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 9660025811 - 2² = 9660025807 is a prime.

It is not a weakly prime, because it can be changed into another prime (9660025801) 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, 4830012905 + 4830012906.

It is an arithmetic number, because the mean of its divisors is an integer number (4830012906).

Almost surely, 2^9660025811 is an apocalyptic number.

9660025811 is a deficient number, since it is larger than the sum of its proper divisors (1).

9660025811 is an equidigital number, since it uses as much as digits as its factorization.

9660025811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 9660025811 is about 98285.4303088713. The cubic root of 9660025811 is about 2129.7375866780.

The spelling of 9660025811 in words is "nine billion, six hundred sixty million, twenty-five thousand, eight hundred eleven".