65651499959 has 2 divisors, whose sum is σ = 65651499960. Its totient is φ = 65651499958.

The previous prime is 65651499937. The next prime is 65651500001. The reversal of 65651499959 is 95999415656.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-65651499959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (65651499059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32825749979 + 32825749980.

It is an arithmetic number, because the mean of its divisors is an integer number (32825749980).

Almost surely, 2^65651499959 is an apocalyptic number.

65651499959 is a deficient number, since it is larger than the sum of its proper divisors (1).

65651499959 is an equidigital number, since it uses as much as digits as its factorization.

65651499959 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 118098000, while the sum is 68.

The spelling of 65651499959 in words is "sixty-five billion, six hundred fifty-one million, four hundred ninety-nine thousand, nine hundred fifty-nine".