65612848868378 has 16 divisors (see below), whose sum is σ = 112729679899200. Its totient is φ = 28057164769536.

The previous prime is 65612848868351. The next prime is 65612848868393. The reversal of 65612848868378 is 87386884821656.

It is a super-2 number, since 2×65612848868378² (a number of 28 digits) contains 22 as substring.

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, 5218960376 + ... + 5218972947.

It is an arithmetic number, because the mean of its divisors is an integer number (7045604993700).

Almost surely, 2^{65612848868378} is an apocalyptic number.

65612848868378 is a deficient number, since it is larger than the sum of its proper divisors (47116831030822).

65612848868378 is a wasteful number, since it uses less digits than its factorization.

65612848868378 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10437933781.

The product of its digits is 5945425920, while the sum is 80.

The spelling of 65612848868378 in words is "sixty-five trillion, six hundred twelve billion, eight hundred forty-eight million, eight hundred sixty-eight thousand, three hundred seventy-eight".