65271651091 has 2 divisors, whose sum is σ = 65271651092. Its totient is φ = 65271651090.

The previous prime is 65271651047. The next prime is 65271651161. The reversal of 65271651091 is 19015617256.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65271651091 - 2⁹ = 65271650579 is a prime.

It is a super-2 number, since 2×65271651091² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (65271651001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32635825545 + 32635825546.

It is an arithmetic number, because the mean of its divisors is an integer number (32635825546).

Almost surely, 2^65271651091 is an apocalyptic number.

65271651091 is a deficient number, since it is larger than the sum of its proper divisors (1).

65271651091 is an equidigital number, since it uses as much as digits as its factorization.

65271651091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 113400, while the sum is 43.

It can be divided in two parts, 6527165 and 1091, that added together give a palindrome (6528256).

The spelling of 65271651091 in words is "sixty-five billion, two hundred seventy-one million, six hundred fifty-one thousand, ninety-one".