64240507185 has 32 divisors (see below), whose sum is σ = 104018048640. Its totient is φ = 33852968448.

The previous prime is 64240507153. The next prime is 64240507207. The reversal of 64240507185 is 58170504246.

It is a happy number.

It is not a de Polignac number, because 64240507185 - 2⁵ = 64240507153 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 345349 + ... + 497741.

It is an arithmetic number, because the mean of its divisors is an integer number (3250564020).

Almost surely, 2^64240507185 is an apocalyptic number.

It is an amenable number.

64240507185 is a deficient number, since it is larger than the sum of its proper divisors (39777541455).

64240507185 is a wasteful number, since it uses less digits than its factorization.

64240507185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152737.

The product of its (nonzero) digits is 268800, while the sum is 42.

The spelling of 64240507185 in words is "sixty-four billion, two hundred forty million, five hundred seven thousand, one hundred eighty-five".