65608678660 has 24 divisors (see below), whose sum is σ = 157460829120. Its totient is φ = 22494404064.

The previous prime is 65608678633. The next prime is 65608678673. The reversal of 65608678660 is 6687680656.

65608678660 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×65608678660² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (58) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 65608678595 and 65608678604.

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, 234316570 + ... + 234316849.

It is an arithmetic number, because the mean of its divisors is an integer number (6560867880).

Almost surely, 2^65608678660 is an apocalyptic number.

It is an amenable number.

65608678660 is an abundant number, since it is smaller than the sum of its proper divisors (91852150460).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65608678660 is a wasteful number, since it uses less digits than its factorization.

65608678660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468633435 (or 468633433 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 58.

The spelling of 65608678660 in words is "sixty-five billion, six hundred eight million, six hundred seventy-eight thousand, six hundred sixty".