65260333452985 has 40 divisors (see below), whose sum is σ = 89113560078600. Its totient is φ = 45825436419840.

The previous prime is 65260333452983. The next prime is 65260333453031. The reversal of 65260333452985 is 58925433306256.

It can be written as a sum of positive squares in 4 ways, for example, as 53804049849 + 65206529403136 = 231957^2 + 8075056^2 .

It is not a de Polignac number, because 65260333452985 - 2¹ = 65260333452983 is a prime.

It is a super-2 number, since 2×65260333452985² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (65260333452983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 13247292 + ... + 17493181.

It is an arithmetic number, because the mean of its divisors is an integer number (2227839001965).

Almost surely, 2^{65260333452985} is an apocalyptic number.

It is an amenable number.

65260333452985 is a deficient number, since it is larger than the sum of its proper divisors (23853226625615).

65260333452985 is an equidigital number, since it uses as much as digits as its factorization.

65260333452985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30740551 (or 30740518 counting only the distinct ones).

The product of its (nonzero) digits is 139968000, while the sum is 61.

The spelling of 65260333452985 in words is "sixty-five trillion, two hundred sixty billion, three hundred thirty-three million, four hundred fifty-two thousand, nine hundred eighty-five".