64540060345 has 8 divisors (see below), whose sum is σ = 77509595520. Its totient is φ = 51591032880.

The previous prime is 64540060327. The next prime is 64540060373. The reversal of 64540060345 is 54306004546.

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

It is not a de Polignac number, because 64540060345 - 2¹⁹ = 64539536057 is a prime.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 5120001 + ... + 5132590.

It is an arithmetic number, because the mean of its divisors is an integer number (9688699440).

Almost surely, 2^64540060345 is an apocalyptic number.

It is an amenable number.

64540060345 is a deficient number, since it is larger than the sum of its proper divisors (12969535175).

64540060345 is a wasteful number, since it uses less digits than its factorization.

64540060345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10253855.

The product of its (nonzero) digits is 172800, while the sum is 37.

The spelling of 64540060345 in words is "sixty-four billion, five hundred forty million, sixty thousand, three hundred forty-five".