65716347904 has 33 divisors (see below), whose sum is σ = 131384920251. Its totient is φ = 32854072320.

The previous prime is 65716347887. The next prime is 65716347947. The reversal of 65716347904 is 40974361756.

The square root of 65716347904 is 256352.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian 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 2 ways as a sum of consecutive naturals, for example, 8199259 + ... + 8207269.

Almost surely, 2^65716347904 is an apocalyptic number.

65716347904 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

65716347904 is the 256352-nd square number.

It is an amenable number.

65716347904 is a deficient number, since it is larger than the sum of its proper divisors (65668572347).

65716347904 is an frugal number, since it uses more digits than its factorization.

65716347904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16042 (or 8013 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 52.

The spelling of 65716347904 in words is "sixty-five billion, seven hundred sixteen million, three hundred forty-seven thousand, nine hundred four".