65900011091 has 2 divisors, whose sum is σ = 65900011092. Its totient is φ = 65900011090.

The previous prime is 65900011043. The next prime is 65900011139. The reversal of 65900011091 is 19011000956.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (65900011043) and next prime (65900011139).

It is a cyclic number.

It is not a de Polignac number, because 65900011091 - 2²² = 65895816787 is a prime.

It is a super-2 number, since 2×65900011091² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (65900011031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32950005545 + 32950005546.

It is an arithmetic number, because the mean of its divisors is an integer number (32950005546).

Almost surely, 2^65900011091 is an apocalyptic number.

65900011091 is a deficient number, since it is larger than the sum of its proper divisors (1).

65900011091 is an equidigital number, since it uses as much as digits as its factorization.

65900011091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2430, while the sum is 32.

The spelling of 65900011091 in words is "sixty-five billion, nine hundred million, eleven thousand, ninety-one".