64305340420345 has 8 divisors (see below), whose sum is σ = 77166452976264. Its totient is φ = 51444242688384.

The previous prime is 64305340420337. The next prime is 64305340420357. The reversal of 64305340420345 is 54302404350346.

64305340420345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 15389136564201 + 48916203856144 = 3922899^2 + 6994012^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64305340420345 - 2³ = 64305340420337 is a prime.

It is a super-2 number, since 2×64305340420345² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11537247 + ... + 16177723.

It is an arithmetic number, because the mean of its divisors is an integer number (9645806622033).

Almost surely, 2^{64305340420345} is an apocalyptic number.

It is an amenable number.

64305340420345 is a deficient number, since it is larger than the sum of its proper divisors (12861112555919).

64305340420345 is a wasteful number, since it uses less digits than its factorization.

64305340420345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7411979.

The product of its (nonzero) digits is 2073600, while the sum is 43.

The spelling of 64305340420345 in words is "sixty-four trillion, three hundred five billion, three hundred forty million, four hundred twenty thousand, three hundred forty-five".