64998308201 has 16 divisors (see below), whose sum is σ = 67173759744. Its totient is φ = 62867805264.

The previous prime is 64998308183. The next prime is 64998308213. The reversal of 64998308201 is 10280389946.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 64998308201 - 2²⁶ = 64931199337 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 64998308201.

It is not an unprimeable number, because it can be changed into a prime (64998308261) 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 in 15 ways as a sum of consecutive naturals, for example, 870590 + ... + 942296.

It is an arithmetic number, because the mean of its divisors is an integer number (4198359984).

Almost surely, 2^64998308201 is an apocalyptic number.

It is an amenable number.

64998308201 is a deficient number, since it is larger than the sum of its proper divisors (2175451543).

64998308201 is a wasteful number, since it uses less digits than its factorization.

64998308201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72020.

The product of its (nonzero) digits is 746496, while the sum is 50.

The spelling of 64998308201 in words is "sixty-four billion, nine hundred ninety-eight million, three hundred eight thousand, two hundred one".