65948680 has 64 divisors (see below), whose sum is σ = 170346240. Its totient is φ = 22509312.

The previous prime is 65948669. The next prime is 65948693. The reversal of 65948680 is 8684956.

It is a self number, because there is not a number n which added to its sum of digits gives 65948680.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88389 + ... + 89131.

It is an arithmetic number, because the mean of its divisors is an integer number (2661660).

Almost surely, 2^65948680 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65948680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (85173120).

65948680 is an abundant number, since it is smaller than the sum of its proper divisors (104397560).

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

65948680 is a wasteful number, since it uses less digits than its factorization.

65948680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1078 (or 1074 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 46.

The square root of 65948680 is about 8120.8792627400. The cubic root of 65948680 is about 404.0192292256.

The spelling of 65948680 in words is "sixty-five million, nine hundred forty-eight thousand, six hundred eighty".