65644992103 has 2 divisors, whose sum is σ = 65644992104. Its totient is φ = 65644992102.

The previous prime is 65644991983. The next prime is 65644992137. The reversal of 65644992103 is 30129944656.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65644992103 - 2¹⁷ = 65644861031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65644995103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32822496051 + 32822496052.

It is an arithmetic number, because the mean of its divisors is an integer number (32822496052).

Almost surely, 2^65644992103 is an apocalyptic number.

65644992103 is a deficient number, since it is larger than the sum of its proper divisors (1).

65644992103 is an equidigital number, since it uses as much as digits as its factorization.

65644992103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1399680, while the sum is 49.

The spelling of 65644992103 in words is "sixty-five billion, six hundred forty-four million, nine hundred ninety-two thousand, one hundred three".