65716378 has 32 divisors (see below), whose sum is σ = 125516160. Its totient is φ = 25099200.

The previous prime is 65716327. The next prime is 65716397. The reversal of 65716378 is 87361756.

65716378 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 948 + ... + 11503.

It is an arithmetic number, because the mean of its divisors is an integer number (3922380).

Almost surely, 2^65716378 is an apocalyptic number.

65716378 is a deficient number, since it is larger than the sum of its proper divisors (59799782).

65716378 is a wasteful number, since it uses less digits than its factorization.

65716378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12502.

The product of its digits is 211680, while the sum is 43.

The square root of 65716378 is about 8106.5638836686. The cubic root of 65716378 is about 403.5442897682.

The spelling of 65716378 in words is "sixty-five million, seven hundred sixteen thousand, three hundred seventy-eight".