65680750733 has 8 divisors (see below), whose sum is σ = 71167063968. Its totient is φ = 60256430064.

The previous prime is 65680750687. The next prime is 65680750757. The reversal of 65680750733 is 33705708656.

It is a happy number.

65680750733 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 a cyclic number.

It is not a de Polignac number, because 65680750733 - 2¹⁶ = 65680685197 is a prime.

It is a super-2 number, since 2×65680750733² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65680750783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15495935 + ... + 15500172.

It is an arithmetic number, because the mean of its divisors is an integer number (8895882996).

Almost surely, 2^65680750733 is an apocalyptic number.

It is an amenable number.

65680750733 is a deficient number, since it is larger than the sum of its proper divisors (5486313235).

65680750733 is a wasteful number, since it uses less digits than its factorization.

65680750733 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30996283.

The product of its (nonzero) digits is 3175200, while the sum is 50.

The spelling of 65680750733 in words is "sixty-five billion, six hundred eighty million, seven hundred fifty thousand, seven hundred thirty-three".