65650648 has 32 divisors (see below), whose sum is σ = 146799360. Its totient is φ = 26912160.

The previous prime is 65650639. The next prime is 65650703. The reversal of 65650648 is 84605656.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 65650648.

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, 24198 + ... + 26773.

It is an arithmetic number, because the mean of its divisors is an integer number (4587480).

Almost surely, 2^65650648 is an apocalyptic number.

It is an amenable number.

65650648 is an abundant number, since it is smaller than the sum of its proper divisors (81148712).

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

65650648 is a wasteful number, since it uses less digits than its factorization.

65650648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51007 (or 51003 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 40.

The square root of 65650648 is about 8102.5087472955. The cubic root of 65650648 is about 403.4097022403.

The spelling of 65650648 in words is "sixty-five million, six hundred fifty thousand, six hundred forty-eight".