64240306855 has 8 divisors (see below), whose sum is σ = 79746588000. Its totient is φ = 49620098976.

The previous prime is 64240306849. The next prime is 64240306891. The reversal of 64240306855 is 55860304246.

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 64240306855 - 2⁹ = 64240306343 is a prime.

It is a congruent number.

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, 221518155 + ... + 221518444.

It is an arithmetic number, because the mean of its divisors is an integer number (9968323500).

Almost surely, 2^64240306855 is an apocalyptic number.

64240306855 is a deficient number, since it is larger than the sum of its proper divisors (15506281145).

64240306855 is a wasteful number, since it uses less digits than its factorization.

64240306855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443036633.

The product of its (nonzero) digits is 691200, while the sum is 43.

The spelling of 64240306855 in words is "sixty-four billion, two hundred forty million, three hundred six thousand, eight hundred fifty-five".