64565778214 has 16 divisors (see below), whose sum is σ = 113039175168. Its totient is φ = 27082301832.

The previous prime is 64565778203. The next prime is 64565778229. The reversal of 64565778214 is 41287756546.

64565778214 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49061484 + ... + 49062799.

It is an arithmetic number, because the mean of its divisors is an integer number (7064948448).

Almost surely, 2^64565778214 is an apocalyptic number.

64565778214 is a deficient number, since it is larger than the sum of its proper divisors (48473396954).

64565778214 is a wasteful number, since it uses less digits than its factorization.

64565778214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98124339.

The product of its digits is 11289600, while the sum is 55.

The spelling of 64565778214 in words is "sixty-four billion, five hundred sixty-five million, seven hundred seventy-eight thousand, two hundred fourteen".