65890045099 has 2 divisors, whose sum is σ = 65890045100. Its totient is φ = 65890045098.

The previous prime is 65890045097. The next prime is 65890045129. The reversal of 65890045099 is 99054009856.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 65890045099 - 2¹ = 65890045097 is a prime.

Together with 65890045097, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (65890045097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32945022549 + 32945022550.

It is an arithmetic number, because the mean of its divisors is an integer number (32945022550).

Almost surely, 2^65890045099 is an apocalyptic number.

65890045099 is a deficient number, since it is larger than the sum of its proper divisors (1).

65890045099 is an equidigital number, since it uses as much as digits as its factorization.

65890045099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3499200, while the sum is 55.

The spelling of 65890045099 in words is "sixty-five billion, eight hundred ninety million, forty-five thousand, ninety-nine".