65680706545 has 8 divisors (see below), whose sum is σ = 78825939840. Its totient is φ = 52538503920.

The previous prime is 65680706537. The next prime is 65680706593. The reversal of 65680706545 is 54560708656.

65680706545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 65680706545 - 2³ = 65680706537 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65680706492 and 65680706501.

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, 709711 + ... + 796900.

It is an arithmetic number, because the mean of its divisors is an integer number (9853242480).

Almost surely, 2^65680706545 is an apocalyptic number.

It is an amenable number.

65680706545 is a deficient number, since it is larger than the sum of its proper divisors (13145233295).

65680706545 is a wasteful number, since it uses less digits than its factorization.

65680706545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1515335.

The product of its (nonzero) digits is 6048000, while the sum is 52.

The spelling of 65680706545 in words is "sixty-five billion, six hundred eighty million, seven hundred six thousand, five hundred forty-five".