65680706492 has 24 divisors (see below), whose sum is σ = 120409867200. Its totient is φ = 31306556736.

The previous prime is 65680706461. The next prime is 65680706503. The reversal of 65680706492 is 29460708656.

65680706492 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, 3574463 + ... + 3592790.

It is an arithmetic number, because the mean of its divisors is an integer number (5017077800).

Almost surely, 2^65680706492 is an apocalyptic number.

It is an amenable number.

65680706492 is a deficient number, since it is larger than the sum of its proper divisors (54729160708).

65680706492 is a wasteful number, since it uses less digits than its factorization.

65680706492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7167365 (or 7167363 counting only the distinct ones).

The product of its (nonzero) digits is 4354560, while the sum is 53.

The spelling of 65680706492 in words is "sixty-five billion, six hundred eighty million, seven hundred six thousand, four hundred ninety-two".