64344104551365 has 16 divisors (see below), whose sum is σ = 102960496219200. Its totient is φ = 34313546115072.

The previous prime is 64344104551301. The next prime is 64344104551373. The reversal of 64344104551365 is 56315540144346.

It is not a de Polignac number, because 64344104551365 - 2⁶ = 64344104551301 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 206692135 + ... + 207003204.

It is an arithmetic number, because the mean of its divisors is an integer number (6435031013700).

Almost surely, 2^{64344104551365} is an apocalyptic number.

It is an amenable number.

64344104551365 is a deficient number, since it is larger than the sum of its proper divisors (38616391667835).

64344104551365 is a wasteful number, since it uses less digits than its factorization.

64344104551365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 413705716.

The product of its (nonzero) digits is 10368000, while the sum is 51.

The spelling of 64344104551365 in words is "sixty-four trillion, three hundred forty-four billion, one hundred four million, five hundred fifty-one thousand, three hundred sixty-five".